whale, Shedd Aquarium,
Chicago, Illinois 4/9/98, Kodak Ultra Gold 1000. The whale has a prominent
melon (fatty acoustic lens for focusing sonar) whose movements are sometimes
of Pacific Whitesided Dolphin, Shedd Aquarium. The needlelike teeth are
used to grip slippery fish.
whale lower jaw, Field Museum of Natural
History, Chicago, Illinois. The jaw is 10 or 12 feet (3 to 3.5 meters)
Whale skeleton, Field Museum. Note the handlike flipper bones. Since whales
are mammals (which evolved from land mammals), their skeletal features
are similar. Some whales have vestigial hipbones, where the hind legs were
Black Right Whale jaw, Field Museum of Natural History. The baleen (whalebone)
plates connect to the single upper bone.
Right Whale body, seen from the front. Field Museum of Natural History.
Note the handlike bones; that's what they are (the bones of the flippers).