Whales
Whale population has decreased by at
least half of what it was 200 years ago. Most whales are
beached, killed or poached. Beluga whales have been found
with high levels of toxins such as PCB's, DDT's, and
insecticide mirex. Whaling has changed in many way, like
stronger weapons and increased whalng activity. Because of
this, some whales attack humans. Once a whale jumped on a
boat and crushed two people, injuring them both. There are two kinds of whales, baleen and
toothed whales. Baleen whales have plates in their mouths.
Thet catch tiny food like plankton. Toothed whales have
teeth and est foods like squid, octopus and even each other.
Whales, like dolphins, use echolocation
to find and communicate under water. They have a few human
friends which help push them back in the water if they are
beached.
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A few facts: The Killer Whale, or Orca whale is not really a killer. Gray Whales were once thought to be extinct and are now endangerd for the second time. |
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