Earth & Conservation

Origin of Big Cats, Invisibility Cloaks and More! - IFLS

Check out a simulation that shows how Mars looked nearly 4 billion years ago, where dogs were first domesticated and a type of sea slug that stabs its lover in the forehead during ...intercourse? All that and more on this episode of IFLS!

Read more about this week's topics:

Kuiper belt object:

Big cats:

Invisibility cloak:

Dog domestication:

Comet ISON:


Mars with water:

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