Beyond Trayvon: How ‘Stand Your Ground’ Laws Spread from Florida to Half the U.S.

The seal feels perfectly safe lying on the Antarctic ice even if it is surrounded by a pod of killer whales.

But within minutes it has been knocked into the water in a clever team tactic before being killed.


These astonishing pictures show how the sea predators work together - and the technique provides meals for killer whales three out of every four times they use it, according to scientists.  More Read