A baby Hoffman’s two-toed sloth lies in a basket during rehabilitation at the Jaguar Rescue Center in Costa Rica. Annie Marie Musselman Nursing a helpless baby sloth, which weighs only 10 or 11 ...

On its own, a baby seahorse has a lot to contend with. On average, if the population is stable, only two of the thousands of young that a pair produces will reach maturity. Life doesn't become ...