the largest animal to have ever lived on Earth.

The blue whale is the largest animal to have ever lived on Earth. It has a long, torpedo-shaped body with blue-gray colored skin and a slightly lighter colored underside. The blue whale has two pectoral fins, a small dorsal fin on its back, and a large fluke1. It can grow up to 105 feet in length and weigh up to 200 tons12. Blue whales feed almost exclusively on tiny shrimp-like creatures called krill. They feed by opening their huge mouths, swimming forward, and then filtering out the water through a structure called "baleen"1. Blue whales can be identified by their spouts, which are shaped like an exclamation point (!) without the dot and are approximately 30 feet tall1. These magnificent creatures inhabit every ocean in the world, including the Arctic, Tropical, Subtropical, and Temperate seas1.

A female blue whale gives birth to one calf about 12 months after mating. The newborn whale is approximately 25 feet long and gains about 200 pounds per day by feeding on its mother’s rich milk3.

I hope you find this information helpful! Let me know if there’s anything else you’d like to know.