Elephant
You think nine months is a ludicrously long pregnancy? Have a go at keeping that bun in your oven for a long time like an elephant!
Guinea Pig
While people generally consider rabbits prolific breeders, guinea pigs turn out to be sexually mature at three weeks. That joined with the way that its extremely hard to apparently judge whether a female is pregnant, be mindful in case you’re considering buying one from the pet store – a lot of unknowing client has carried home a guinea pig with some free ones on the way.