A sea animal from Australia is capturing the hearts of the Internet: meet Pesto the penguin!

Only a month after Thailand's adorable baby hippo Moo Deng was unveiled on Facebook, her fame became unstoppable.

Reid Park Zoo's 6-month-old elephant calf Meru reached a big milestone: she got into the grown-up pool, which goes as deep as ...

Nancy Her was working as an occupational therapist in Roseville, Minn. — another normal day until she suddenly collapsed with ...