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An thoughtful reindeer mother attends to her 10 - Clarence Shepard Day Jr. - old calf in this photo taken May 24 at the San Diego Zoo .

The untried male person is growing everyday and weighs about 15 pounds now , the zoological garden said in a statement . He shows spurts of zip , but is still a little wonky on his legs .

Our amazing planet.

A mother reindeer nuzzles her 10-day-old calf at the San Diego Zoo.

The unknown calf sticks close to his mother and mimics her behaviors , let in chewing on solid foods . The calf is still nursing and appears to only be try food like acacia leave .

Reindeer ( also call in caribou)can be set up in tundra , mountain and woodland home ground throughout North America , Europe and Asia . They have several adaptation that help them live rough clime , admit a thick coating , big round feet that serve like Baron Snow of Leicester shoes , and a great sense of smell that permit reindeer to discover lichen and skunk beneath the snow .

Reindeer mom and calf at San Diego Zoo

A mother reindeer nuzzles her 10-day-old calf at the San Diego Zoo.

A female polar bear and two cubs lie in the snow surrounded by scrubby plants.

A photograph of three baby western Santa Cruz Galápagos tortoises recently hatched at Philadelphia Zoo.

A photograph of elephants at the San Diego Zoo Safari Park.

A photograph of Mommy, a 100-year-old tortoise at Philadelphia Zoo.

a group of scientists gather around a dissection table with a woolly mammoth baby

two black bears lounge in a tree

A close-up of the head of a dromedary camel is shown at the Wroclaw Zoological Garden in Poland.

This still comes from a video of Julia with cubs belonging to her and her sister Jessica.

In this aerial photo from June 14, 2021, a herd of wild Asian elephants rests in Shijie Township of Yimen County, Yuxi City, southwest China�s Yunnan Province.

The pup still had its milk teeth, suggesting it was under 2 months old when it died.

Hagfish, blanket weed and opossums are just a few of the featured characters in a new field guide to slime-producing critters.

The reptile�s long tail is visible, but most of the crocodile�s body is hidden under the bulk of the elephant that crushed it to death.

An image comparing the relative sizes of our solar system�s known dwarf planets, including the newly discovered 2017 OF201

a person holds a GLP-1 injector

A man with light skin and dark hair and beard leans back in a wooden boat, rowing with oars into the sea

an MRI scan of a brain

A photograph of two of Colossal�s genetically engineered wolves as pups.

an abstract image of intersecting lasers

Split image of an eye close up and the Tiangong Space Station.