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At least on this planet, only members of homo sapiens are freaky enough to be entertained by a cat dressed as an avocado.

The research for the first time pinpoints a short period 48,000 years ago when Homo sapiens interbred with Neanderthals after leaving Africa, after which they went on to expand into the wider world.

“Homo sapiens is a unique species in that our vastly superior intelligence does not seem, in the majority of individuals at least, to inhibit irrational destruction of its own species,” dos Santos told Salon.

It has 50 times more DNA than Homo sapiens, the species that figured out what DNA is in the first place.

The research team examined genomes from 59 ancient Homo sapiens individuals, mostly from Western Europe and Asia, dating from between 45,000 and 2200 years ago.