Some pets that seem very similar, like parrots, cockatiels and parakeets, have vastly different lifespans- parrots can live 50 years or more, cockatiels live about half as long and parakeets live about 5-8 years.So why d...

We all know that nature is full of horrors, and we've all seen When Nature Attacks to confirm that animals can easily take out a human with a flurry of hoof blows. And then there are those animals that don't need brawn t...