Mommy, a 97-year-old Santa Cruz Galapagos tortoise, became the oldest first-time mom of her species after she welcomed four ...

Baby monkeys who receive more care from their mothers develop stronger facial expression recognition skills as they grow, ...

When they grow accustomed to fending for themselves at about 6 months old, baby porcupines—called porcupettes— leave their mothers. 10. Porcupine quills have overlapping barbs that make them hard to ...