The Barclays Capital Aggregate Bond Index, which used to be called the Lehman Aggregate Bond Index, is a broad base index, maintained by Barclays Capital, which took over the index business of the now defunct Lehman Brothers, and is often used to represent investment grade bonds being traded in United States.
How long do killer whales live? How do they die? Killer whales have no natural predators (they are the top predators of the oceans) and can live to about 50-80 years old. Killer whales have been hunted by humans but not with enthusiasm as it takes 21 killer whales to produce the same amount of oil as 1 sperm whale.ow do killer whales have their young? Killer whale males reach breeding age when they are around 22 feet (6.7 meters) long while females can breed when they are about 16 feet (4.9 meters) long.
Killer whales rule the sea thanks to their impressive physical characteristics. They can grow to be nearly as long as a school bus and weigh up to 12,000 pounds. They also possess a mouth full of sharp teeth that can grow to be four inches long. Killer whales are very social animals that live in groups called pods. Pods can have as many as 40 members that stick together to hunt for food. Like the dolphins they're related to, killer whales use echolocation to communicate with each other.