London Zoo

Critically Endangered Gorilla Born at London Zoo

Conservation zoo celebrates precious addition to breeding programme for threatened gorilla subspecies

London Zoo has welcomed a critically endangered western lowland gorilla infant, after a speedy 17-minute labour.

The tiny infant was born at the conservation zoo to mum Mjukuu at 9:34am on Wednesday 17 January 2024, following an approximately eight-and-a-half-month long pregnancy.

Western lowland gorilla Mjukuu holds newborn at London Zoo on 17 January 2024 (c)JKemeys_LondonZoo (2)

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Swinging Into 2023 

London Zoo celebrates not so slow start to the year with birth of adorable baby sloth 

London Zoo has shared adorable pictures and footage of its first 2023 arrival - a baby two-toed sloth, born on New Year’s Day. 

Knowing 16-year-old sloth Marilyn was due any day, zookeepers had kept a close eye on the mum-to-be over Christmas and were thrilled to finally spot two big brown eyes peering out through her fur. 

Baby sloth pokes out tongue at London Zoo (c) ZSL

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London Zoo’s Tiger Cubs Get First Health Check

ZSL London Zoo’s trio of tiger cubs have had their visit from the Zoo’s veterinarians, who were finally able to confirm the sexes of the stripy babies – two males and a female! 

ZSL veterinarian Dr Ellie Milnes gave each cub a thorough nose-to-tail examination, checking their eyes, teeth, heart, and overall physical health as well as weighing each cub. All three were given a clean bill of health, and their information added to the Zoological Information Management System (ZIMS), a database shared with zoos all over the world that helps zookeepers and conservationists to compare important information on thousands of endangered species.   

Sumatran tiger cub health checks at London Zoo (c) ZSL London Zoo

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ZSL London Zoo Shares First Images Of Three-Week-Old Sumatran Tiger Cubs Outside  

Sumatran tiger cubs in straw at ZSL London Zoo (c) George Cuevas ZSL London Zoo

BIG CAT CUDDLES: Stunning images of three Critically Endangered Sumatran tiger cubs born in June at ZSL London Zoo show the adorable trio rolling in soft straw and snuggling up to mum Gaysha in their Tiger Territory home.  


The Critically Endangered cubs remained inside the Zoo’s behind-the-scenes cubbing den for the first few weeks of their lives, before recent warm weather prompted Gaysha to bring them outside - to the delight of excited zoogoers. 

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Stripy Bundle Of Joy

Three of the world's rarest tigers born at ZSL London Zoo’s Tiger Territory  

Zookeepers at ZSL London Zoo have shared the first footage of a triply exciting arrival - three Critically Endangered Sumatran tiger cubs, born on Monday 27 June.  

Adorable footage revealed by the Zoo’s hidden ‘cubcam’ shows ten-year-old mum Gaysha giving birth and tenderly cleaning the rare newborns – closely followed by dad Asim gently approaching to meet his new family. 

Sumatran tiger cubs born at ZSL London Zoo - screenshot 2 (c) ZSL

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It's a Boy!

Keepers at ZSL London Zoo have confirmed that their adorable tiger cub, born on 12 December, is a boy! He's getting stronger and more independent every day and is becoming quite a little explorer, climbing anything that he can find!

He's also got a big voice on him already and isn't afraid to tell mum Gaysha when he is ready for a meal or wants some attention. He's no longer a fan of her carrying him around and making all the decisions - you can hear him objecting about her cramping his style! Gaysha takes no notice of his defiance though as she still knows what is best for him!

Gaysha and dad Asim have been perfect parents and, now that they are living as a family group, Asim has been seen taking on bath time and babysitting duties.

If you're a Member, Patron, or Fellow of London Zoo, keep an eye on your inbox for your chance to choose his final name!

Visit the Zoo to see if you can spot him:

Easy, Tiger!

Month-old Sumatran tiger cub takes wobbly first steps outside at ZSL London Zoo’s Tiger Territory 
Footage taken by zookeepers at ZSL London Zoo yesterday (Wednesday 12 January) shows a Critically Endangered Sumatran tiger cub taking its first wobbly steps outdoors – a month after its December birth.  
ZSL London Zoo tiger keeper Kathryn Sanders said: “The cub has so far mostly stayed tucked up with Gaysha in their cosy behind-the-scenes cubbing den, but with such lovely weather yesterday it’s clear she decided it was time for her little one to take its first steps in the outside world.”  

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A Christmas Cub – World’s Rarest Tiger

Zookeepers at ZSL London Zoo have shared the first footage of an adorable Christmas arrival - a Critically Endangered Sumatran tiger cub, born at 02:19 on Sunday 12 December.  

Remarkable footage captured by the Zoo’s hidden ‘cubcam’ shows ten-year-old mum Gaysha cleaning and feeding the rare newborn just hours after the birth - before the determined youngster takes its first wobbly steps on the soft straw of their cosy behind-the-scenes den.  

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Adorable Baby Sloth Surprises Zookeepers With Speedy Birth At ZSL London Zoo 

ZSL London Zoo has shared the first pictures and footage of its newest adorable arrival: a baby two-toed sloth, who surprised keepers with a speedy morning birth on Sunday 24 October.  


Knowing mum Marilyn - who had delivered all six of her previous babies at night - was due any day, zookeepers arrived early to check on the pregnant sloth, who they found snuggled up peacefully in her den, with no baby in sight.  

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