3. Watch for signs of cervical dilation if you are near the end of your pregnancy. This indicates that you are in labor, and it's time to talk with your doctor or midwife. As the baby's head begins to press down on the opening of the uterus, the cervix will start to thin out and open.
A whale is defined as any of the larger cetacean mammals having a streamlined body and breathing through a blowhole on the head. This means that whales are mammals. They're warm blooded, bear live young and also suckle them with milk.
Whales are much larger than sharks. The blue whale is the largest of all the mammals on Earth. When a whale weighs more than 100 tons, the shark weighs about 2,000 kg. Sharks hunt for their food. Whales do not have this hunting tendency. Plankton and krill are the food of whales.hale vs Shark. Whales are mammals and sharks are fish. When whales give birth to young ones, sharks lay eggs. Unlike the young sharks, young whales are fed milk. The whales raise their young ones whereas sharks do not.