Despite slang terms that imply otherwise, the human penis contains no bones. The same cannot be said for many of our closest evolutionary relatives: Chimpanzees and bonobos both have penis bones (a macaque one is pictured, left), also known as bacula.
To find out why some primates have the feature whereas others don’t, researchers traced the bone’s evolutionary history through time. The baculum first evolved between 145 million and 95 million years ago, as reported in the Proceedings of the Royal Society B. That means it was present in the most recent common ancestor of all primates and carnivores. Why some descendants, like humans, lost their bacula appears to be due to differences in mating practices: In primates, the presence of a penis[ ... ]
The average termite queen will produce 30,000 eggs PER DAY. And considering these morbidly obese baby-making machines will often live till they're 20 years old, that means 219,000,000 eggs in single a lifetime.
The surinam toad reproduces in a way that is not for the faint of heart. The female expels dozens of eggs, which the male fertilizes and places on her back, where they become engrained into the flesh. When it comes time to hatch, like so many pimples, the eggs rupture and the babies emerge.
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