2014.05.22

news

A baby California sea lion was born!

California sea lion have started raising their young in the "Monterey Bay" tank ! Depending on the time and location, you can watch them raising their young. On Monday, May 19, 2014, at 1:32 p.m., a baby California sea lion was born in the "Monterey Bay" tank ! Both mother and baby are healthy, and one hour after birth, the baby was seen nursing. The California sea lion who gave birth this time is nicknamed "Sumire" (weight 90 kg, age 11 years old), and the father is "Luke" (weight about 250 kg, age 24 years old). This is Sumire's second birth. Sumire uses her front legs to gently stroke the baby as if to "pat it on the back", and when she hears the baby's cries during her own feeding time, she immediately rushes to the baby's side, taking great care of it and raising it well. The baby is about 70 cm long and weighs 9.02 kg at birth, and its gender is still unknown. The postpartum progress is good, and we have confirmed that the baby is drinking its mother's milk well. Sea lion babies grow on their mother's breast milk for about a year after birth. Currently, the baby is being raised in the exhibition tank that is open to the public, so depending on the time and location, you can see the mother and child smiling. In the "Monterey Bay" tank, not only Luke, the baby's father, but also "Koa" (weight 53 kg, age 3 years old), who was born to Sumire in June 2011, lives with the baby. We will be watching over the newborn baby's growth carefully so that he will grow up healthily as a new member of the sea lion family. [Mother sea lion "Sumire" gently raising her baby and her baby] 1. About the newborn California sea lion Date of birth Monday, May 19, 2014 Place of birth Inside the "Monterey Bay" tank on the 7th floor of Kaiyukan Condition at the time of birth Born at 1:32 pm under the watch of zookeepers who were strengthening their observation. The first feeding was confirmed about an hour later. Baby's data at birth Length: about 70cm (visual estimate) Weight: 9.02kg (actual measurement) Gender: unknown 2. About California sea lion California sea lion name: California sea lion English name: California sea lion Scientific name: Zalophus californianus Order: Pinnipedia Family: Otariidae. They live only on the eastern coast of the North Pacific Ocean Ocean. When fully grown, males reach a body length of about 200cm and a weight of about 300kg, while females reach a body length of about 170cm and a weight of about 100kg. Males are completely dark brown, while females are a slightly lighter dark brown. Their limbs are well developed, which are useful not only for swimming in the water but also for walking on land. They are polygamous, with one male leading about 30 females and children to form a group called a "harem." In the wild, mating season is from May to June, and the gestation period is about one year. They usually give birth to one baby at a time and continue to nurse it for about a year after birth. Females reach sexual maturity at around 3 to 4 years old, and males at around 5 years old, and begin breeding.

2014.05.19

news

Four mischievous 5-month-old Asian small- Asian small clawed otter siblings!

[Notice] Starting from Monday, June 2nd, the baby Asian Asian small clawed otter will undergo health checks in the backyard. We appreciate your understanding that you will not be able to see the babies. However, you can still see the Asian small-clawed Asian small clawed otter in the waterside corner of the special exhibition "Experience the Tropical Rainforest." ●●●●●●●●●●●●●●●●●●●●● Four 5-month-old Asian small Asian small clawed otter will make their debut in a Seasonal Exhibits in the ongoing special exhibition "Experience the Tropical Rainforest." The period is from Wednesday, May 21st, 2014 to Monday, January 12th, 2015 (national holiday), and the debut will be a total of five otters, including the four siblings and their mother (nicknamed Ayame). The four Asian small clawed otter were born in the backyard, and this is the first time they will be open to the public. *The number of otters on display may change depending on the health of the Asian small clawed otter. The four Asian Asian small clawed otter on display this time were born on December 29th and 30th, 2013. They have graduated from their mother's milk, can eat fish on their own, and can swim in the pool, so we decided to make them available to the public. When the four siblings were born, they were about 8cm long and weighed 46-57g, small enough to fit in the palm of a human hand, but they have now grown to about 30cm long and 1.3kg, about half the size of their mother (their mother is about 70cm long and weighs about 3kg). The four siblings are very active and interested in everything, and they are in their mischievous and adorable stage, stealing food from their mother. At Kaiyukan, we hope that many visitors will be able to see their lively and cheerful behavior. [Exhibition of four Asian small clawed otter] Exhibit starts Wednesday, May 21, 2014 to Monday, January 12, 2015 (holiday) *During the special exhibit "Experience! Tropical Rainforest" *The number of exhibits may change or be canceled without notice depending on the health of the animals. Exhibit location Special exhibit room in the "New Experience Area" on the 4th floor of the Kaiyukan Entrance Building Number of otters: 5 (mother and 4 children) Mother: Nicknamed "Ayame" Children: Nicknamed "Warabi", "Tsukushi", "Suika" (3 males), "Konoha" (only one female) Personality, etc. "Warabi" Likes toys such as shells and often plays alone. "Tsukushi" A spoiled child who receives fish as food from his mother Ayame. Has a large face. "Suika" Has a gentle personality and is often absent-minded. "Konoha" The strongest of the four siblings. A glutton who never leaves the zookeeper's side during feeding time. [Asian small clawed otter] English name: Asian small clawed otter Scientific name: Asian small clawed otter cinerea Mustelidae. The smallest species of otter. Found in Southeast Asia. It is named after the small, short claws on the fingers of its four limbs. Its dexterity allows it to grasp things well. It eats small fish and frogs. The Japanese river otter once lived in Japan, but was designated an extinct species in August 2012.

2013.09.10

news

There's even more baby boom for the penguins at Kaiyukan! A baby King penguin has been born!

A baby King penguin was born on Tuesday, August 27, 2013. It is currently in the "Antarctica" tank, where its parent is protecting it under its belly, and the baby occasionally peeks out. Baby King penguin born on August 27 (photographed on September 10) It's grown so big! (photographed on October 15) King penguin have a special way of incubating eggs among penguins. They do not build nests, but place the egg directly on their feet and cover it with the skin of their bellies. The male and female take turns incubating the egg, and the baby is born about 60 days later. At Kaiyukan, to prevent the egg from being dropped and cracked when the male and female hand it over, or from being dropped into the pool, the egg is replaced with a fake egg immediately after it is laid. The egg is stored in an incubator, and when the baby starts to crack the shell from inside, it is returned to the parent. The baby is currently in good health, and the zookeepers are weighing the baby every day and watching its growth together with the parents. (Weight measurements are taken before the opening time of Kaiyukan .) This marks the 40th King penguin to be born at Kaiyukan . Baby King penguin born on August 27th (photographed on September 10th) [About the birth of the baby] Date of egg laying: Monday, July 1st, 2013 *Egg major axis 104.0mm, minor axis 77.6mm, weight 365.4g Date of hatching: Tuesday, August 27th, 2013 *57th day after egg laying, body length approx. 10cm (visual estimate), weight 267.5g Chick size: body length approx. 12cm (visual estimate), weight 383g *As of September 3rd [About the King penguin] Japanese name: King penguin(sphenoid family) English name: King penguin Scientific name: Aptenodytes patagonicus Lives on islands around Antarctica, body length approx. 90cm, weight approx. 12kg. Eats small fish, krill, squid, etc. Weight approx. 2kg about one month after hatching, weight approx. 7kg about two months. About six months after birth, they reach almost the same size as their parents. At about eight months of age, they lose their brown downy feathers and adopt the same pattern as their parents. At Kaiyukan, the baby Adelie penguin born on July 10th and the baby Gentoo penguin born on July 26th are also growing healthily, and are in their cute baby bird form at their best. Baby Adelie penguin(born July 10th, photographed September 4th) Baby Gentoo penguin(born July 26th, photographed September 4th) Baby Gentoo penguin(born July 27th, not open to the public as it is being artificially raised in the back yard) Baby Gentoo penguin(born August 11th, not open to the public as it is being artificially raised in the back yard)

2013.08.22

news

Gentoo penguin and Adelie penguin are growing well!

Adelie penguin and Gentoo penguin were born at Kaiyukan this year. They are growing up healthily, getting lots of food from their parents! Take a look at how the babies are growing! In addition, the official Kaiyukan Twitter, Kaiyukan Facebook page, and the blog "Kaiyukan Diary" also provide updates on the growth of the baby penguins, their weight measurements, and how the zookeepers are artificially raising the Gentoo penguins in the backyard. Gentoo penguin Born on July 26, 2013 Photographed on July 30 Four days after birth. Still small, but finally able to make an appearance from under the feet of the parents. Photographed on August 12 About two weeks after birth. Getting lots of food from the parents, they are growing up fast! Photographed on August 18 About three weeks after birth. The feathers on their backs have changed from gray to black like adult birds. Adelie penguin Born on July 11, 2013 Photographed on July 16 Fifth day after birth. They are finally starting to be seen here and there. Photo taken on July 25th, about two weeks old. It has already grown to about half the size of its parents. Photo taken on August 18th, about one and a half months old. Its baby feathers have fallen out and it has started to grow the same feathers as its parents.

2013.08.01

news

The penguins at Kaiyukan are having a baby boom! This time, two baby Gentoo penguin have been born!

Following the birth of the Adelie penguin baby, two Gentoo penguin babies have now been born and are thriving! Photo: Gentoo penguin raising their young in the "Antarctica" tank (photographed on July 30th) On Friday, July 26th, 2013, one penguin hatched in the "Antarctica" tank, allowing visitors to see the adorable little baby and the heartwarming process of raising it. Furthermore, on Saturday, July 27th, another penguin hatched in the back yard. This baby is being raised by the zookeepers in an artificial care setting and is not open to the public. The two newborn babies are siblings born to the same parents, but in order to reduce the burden of raising children and protect their precious life, we decided to raise one of them in an artificial care setting. Right photo: A baby born in the backyard (photographed on July 29th) Gentoo penguin make nests from pebbles, usually laying two eggs at a time, with males and females taking turns incubating the eggs, and the baby is born about 35 days later. The male and female also cooperate in raising the baby, and when the baby shows signs of being hungry, the parent feeds it by mouth. This is a very heartwarming sight, and shows the love between parent and child. The zookeepers also weigh the baby every day to check its health (weight measurements are taken before the opening time of Kaiyukan). Although the baby is still small, you can see its cute appearance when it is weighed. The baby grows quickly, and about one month after hatching, it leaves the nest and begins to wander around the "Antarctica" tank . With the addition of these two, the number of Gentoo penguin babies born at Kaiyukan is now six in total. At Kaiyukan, the baby Adelie penguin born on July 10th is growing up healthily and is now at its most adorable, fledgling stage. Photo: An Adelie penguin born on July 10th (photographed on August 1st) [About the newborn Gentoo penguin babies] First baby *Currently on public display in the "Antarctica" tank{Egg-laying date} Monday, June 17th, 2013 {Hatching date} Friday, July 26th, 2013 39th day after egg-laying {Chick size} Approximately 8cm in length, 112g in weight (estimated as of July 29th) Second baby *Currently not on public display as they are being artificially reared in the back yard {Egg-laying date} Thursday, June 20th, 2013 {Hatching date} Saturday, July 27th, 2013 37th day after egg-laying {Chick size} Approximately 7cm in length, 88.8g in weight (estimated as of July 29th) [This is how the babies are raised in the back yard.] Artificial rearing. They are fed fish paste using a small dropper. Weighing. The babies grow quickly, getting bigger every day. They spend all their time except for feeding time in an incubator. [About the Gentoo penguin] Gentoo penguin English name: Gentoo penguin Scientific name: Pygoscelis papua. Penguin family. Characterized by a white patch on the top of their head. When fully grown, they reach a body length of about 75 cm. They live on the Antarctic Peninsula and islands around Antarctica. They build shallow crater-shaped nests on small hills using weeds, twigs, and pebbles, and females usually lay two eggs at a time. They eat small fish, krill, squid, etc.

2013.07.23

news

Adelie penguin babies have been born! You can see their adorable appearance here.

On Wednesday, July 10, 2013, a baby Adelie penguin penguin was born in the "Antarctica" tank and is growing up healthy. The newly hatched baby spends most of its time under its parent's stomach, so it was difficult to see it, but as it grows, you can now see its cute appearance and the heartwarming process of raising it. Photo: Baby Adelie penguin(photographed on July 16, 6 days after hatching) Photo: Baby Adelie penguin(photographed on July 25, 15 days after hatching) Adelie penguin collect pebbles to build nests, and males and females take turns warming the eggs, and the baby is born about 35 days later. The male and female also cooperate in raising the baby, and when the baby shows signs of being hungry, the parent feeds it by mouth. This is a very heartwarming sight, and shows the love between parent and child. Zookeepers also weigh the baby every day to check its health. Although the babies are still small, you can see their cute appearance when they are weighed. (Weight measurements are taken before the opening hours of Kaiyukan) The babies grow quickly, and about one month after hatching, they will leave the nest and begin to wander around the "Antarctica" tank. 1. [About the birth of the babies] {Egg laying date} Sunday, June 2, 2013 *Egg major axis 70.0 mm, minor axis 54.7 mm, weight 115.5 g {Beak beating date} Tuesday, July 9, 2013 *The date when the baby began to crack the shell from inside the egg {Hatching date} Wednesday, July 10, 2013 *37th day after egg laying, body length approximately 6 cm (visual estimate), weight 65 g *The day of egg laying is calculated as day 0 {Chick size} Body length approximately 15 cm (visual estimate), weight 377 g *As of July 19 2. [About the Adelie penguin] Adelie penguin penguin English name: Adelie penguin Scientific name: Pygoscelis adeliae Family: Penguin. When fully grown, they reach a body length of about 70cm. They are black from the head to the back, and have distinctive white rings (eye rings) around their eyes. Females are often a size smaller than males. They live in Antarctica and the surrounding islands. In the wild, they breed from October to November, building shallow crater-shaped nests surrounded by round pebbles, and females usually lay two eggs per breeding. They eat small fish, krill, etc.

2012.12.04

news

We will be exhibiting the first baby South American coati born at Kaiyukan !

From Friday, December 7, 2012, three baby South American coati born on Thursday, September 6th and their mother will be exhibited in the "Gulf of Panama" tank on the seventh floor of the Aquarium . The mother of the three babies is nicknamed Azuki. This was the first time that a coatis, including "Azuki", was born at Kaiyukan, so "South American coati" was moved to the back yard from August 31st so that she could concentrate on giving birth and raising the baby. After giving birth, "Azuki" breastfed the baby and is raising it well despite it being her first birth. Currently, both mother and child are healthy, and all three babies are growing well. The babies are still drinking their mother's breast, but recently they have started to eat fruits such as apples. The zookeepers have given the babies nicknames "Paprika," "Acerola," and "Rose," respectively. The South American coati is an arboreal creature that moves around by quickly climbing trees and hanging upside down from branches, and while the baby coati is small, it has recently been climbing and hanging from the wire mesh in the backyard and moving around skillfully, showing off very cute movements. In February 2011, Kaiyukan added a tree cavity and artificial wood to the "Gulf of Panama" tank to exhibit the South American coati . At Kaiyukan, we hope that visitors will be able to see the cute baby coati playing energetically in the exhibition tank and feel the preciousness of life. [About the baby South American coati ] Date of birth: Thursday, September 6, 2012 Number of babies born: 3 (gender unknown) Nicknames: Paprika, Acerola, Rose Size at birth: Total length approx. 15 cm, weight approx. 200 g (weight measured on September 14) Current size: Total length approx. 45 cm, weight approx. 780 g (as of December 1) Parents: Father: Nicknamed "Ringo" (2 years old, born September 18, 2010) Mother: Nicknamed "Azuki" (2 years old, born May 17, 2010) Date of exhibit: Friday, December 7, 2012 Exhibit location: "Gulf of Panama" Kaiyukan on the 7th floor of Kaiyukan [About the South American coati] Ringtail South American coati English name: Ringtailed coati Scientific name: Nasua nasua A medium-sized mammal of the raccoon family, it grows to about 130 cm in length and weighs about 5 kg. Its body is reddish brown, and it has a long, mobile nose and a long, striped tail for balance. Its front claws are long and sharp, allowing it to climb trees and dig in the soil. It is diurnal and active both in trees and on the ground. It is omnivorous, and in the wild it eats fruits, small animals, insects, etc. Coatis species live in the forests of Central and South America.