Partial solar eclipse to darken US skies this week. This NASA graphic shows the visibility area of the partial total solar eclipse of Oct. 23, 2014. The eclipse will be visible from most of the United States, weather permitting. Viewers in Los Angeles, California, will see 31 percent of the sun covered, at 3:28 p.m.
These whales can grow to the length of 40-50 feet with a weight of about 40 tons. Gray whales are omnivores and enjoy feeding on amphipod crustaceans. Scammonâs Lagoon, of Baja California is an example of gray whales.
Beluga whales (Delphinapterus leucas) inhabit the arctic and subarctic waters of the Northern Hemisphere. Like all other whales, belugas are mammals that breathe air and nurse their young.Mammals are one group of vertebrates, the first of which appeared about 450 million years ago, during the Cambrian Period.ertebrates have a central column of bones -- the vertebral column -- which houses much of the nervous system. Vertebrates are a very successful group of animals and they have diverged into numerous groups, including reptiles, fish, amphibians and mammals.