The fluctuating temperatures in the core depend on pressure, the rotation of the Earth, and the varying composition of core elements. In general, temperatures range from about 4,400Â° Celsius (7,952Â° Fahrenheit) to about 6,000Â° Celsius (10,800Â° Fahrenheit).
Baleen whale (suborder Mysticeti), also called toothless whale, any cetacean possessing unique epidermal modifications of the mouth called baleen, which is used to filter food from water. Baleen whales seek out concentrations of small planktonic animals. The whales then open their mouth and take in enormous quantities of water. When the mouth is closed, they squeeze the water out through the sides, catching the tiny prey on the baleenâs bristles. (See also cetacean: Feeding adaptations).
Blue whales are the largest baleen whale species--in fact they are the largest animal in the world. Blue whales can grow to be about 100 feet (30.5 meters) in length and may weigh around 160 tons. They are mottled bluish gray, with broad flat heads and a small dorsal fin located in the last forth of the body. Newborn blue whales are about 23 feet (7 meters) long and roughly 30 tons and can add 200 pounds a day!