The composition of black and white in a magpie’s poo differs between species. Some splatter more of the uric acid (white), some have more black (indigestible solids). It depends on their diet. Gisela Kaplan

Curious Kids: why is a magpie’s poo black and white?

Like reptiles, birds do not have two separate exits from the body. They have one, called the cloaca. It is quite similar to the human anus but the cloaca expels both indigestible bits and toxins.
Smarter chimpanzees owe much of their extra intelligence to genes. Gemma Stiles/Flickr

Chimpanzee intelligence has a genetic basis

Not all chimpanzees are created equal. Not only are some more intelligent than others, but about half of this variation is genetically inherited, according to research published today in Current Biology…

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