If killer whales lived on land, we’d be in trouble. Highly intelligent and social, the black-and-white marine mammals hunt in packs, launching coordinated attacks on other whales and sharks, and even wave-wash seals off Antarctic ice floats.
On April 18, a half-dozen orcas battled a pod of sperm whales off the southern coast of Sri Lanka. The unusual encounter is one of fewer than a dozen such recorded conflicts — and the first observed in the Indian Ocean.
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