This document provides information about killer whales in 3 or less sentences:
Killer whales, also known as orcas, are large black and white dolphins that feed on seals, fish, penguins and other whales. They live in Antarctic, Arctic and polar waters, and males can grow up to 23 feet long while females reach 21 feet. Killer whales are highly intelligent, live in family pods led by females, and are top predators that can live for several decades.