If you startled a deer, you might not expect it to jump into the nearest pond and submerge itself for minutes.
But that is exactly what two species of mouse-deer in Asia do when confronted by predators, scientists have found.
One other African mouse-deer species is known to do the same thing, but the new discovery suggests all ruminants may once have had an affinity with water.
It also lends support to the idea that whales evolved from water-loving creatures that looked like small deer.
link: BBC - Earth News - Aquatic deer and ancient whales
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