The common hippo is native to the sub-Saharan regions of Africa. Baby hippos are undoubtedly some of the cutest semiaquatic ...

Baby animals ... marks as they grow older. Young swans have short necks and are covered in a thick coat of down. Swans don't start out as the graceful, snow-white creatures we picture.

The rabbits have been captured on film by their owner who said that he couldn't wait to document them growing ... that such animals are up against. "I want and hope that these photos of my bunnies ...

The new research, which appears in Ecology Letters, gathered together existing global data to gain the best picture yet of ... of what influences how big animals grow will mean we can start ...