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.
A whale's tail has two lobes or flukes, made of dense collagenous material; the flukes are horizontal because whales evolved from land animals who walked on four limbs. The spines of animals who walk on 4 legs are flexible in an up and down motion, this is how the animal locomotes, by flexing the spine.