Answer:
<h3>
Blue whales </h3>
Explanation:
Blue whales are the largest animals ever known to have lived on Earth. These magnificent marine mammals rule the oceans at up to 100 feet long and upwards of 200 tons. Their tongues alone can weigh as much as an elephant. Their hearts, as much as an automobile.
A genetic pool is the absolute hereditary variety found inside a populace or an animal categories. A huge genetic stock has broad hereditary variety and is better ready to withstand the difficulties presented by ecological anxieties.
They are paired, placed in launae and have canaliculi to receive and send nutritive materials to matrix.
The puppies heads are often to big to fit through their mothers birth canal. They may get birth defects like flat chests, if their face are wrinkly they get acne and eye problems, and they are prone to skeletal disorders like hip dysplasia.
