The term “animal” refers to any member of the kingdom Animalia. Animals are generally characterized by the presence of cells that can move independently, a centralized nervous system, and the ability to digest food externally. As cool facts about animals will show, the Animal Kingdom is fascinatingly diverse. Although the exact definition varies from source to source, this general description is usually adequate for most purposes. In addition, animals can reproduce and grow from a zygote to an adult. Animals have evolved a great variety of unique body types and shapes, enabling them to occupy many different habitats. Much of animal life on Earth exists only in the form of microscopic organisms and other single-celled life forms.
Some Random Cool Facts About Animals:
- Echidnas are the only mammals that lay eggs instead of giving birth to live young. After an egg is laid, it has to incubate for 10 days before a baby echidna hatches.
- The heaviest parrot in the world is Kākāpō which can weigh up to 4 kgs and have a lifespan of 90 years.
- Emperor Penguins are the tallest and heaviest amongst all living penguin species. A full-grown emperor penguin is about 4 feet tall and weighs around 40 pounds.
- Insect societies are far more advanced than human societies. For example, a honey bee queen will live for several years and produce over a thousand offspring in a single day without the help of any mate or male counterpart.
- The leafy sea dragon is a creature that thrives in the depths of the oceans off the coast of Australia. It has leaf-like protrusions on its body which allow it to hide from predators in seaweed and kelp forests.
- The shrimp that lives inside a jellyfish is known as a commensal shrimp. However, it does not harm the jellyfish in any way. It simply takes advantage of its convenient habitat.
- The Antarctic toothfish is named after the extremely dense flesh that allows it to remain perfectly still, at depths of up to 2 miles, by lowering its metabolism. This helps reduce its need for oxygen and food.
- Squirrels are one of the few mammal species that hibernate during winter. They stay in a state of deep sleep throughout the season and wake up only when it’s time for them to mate.
- The crocodile is known as a “living fossil.” This means it has remained virtually unchanged since prehistoric times after evolving from an ordinary lizard 225 million years ago.
- Leafcutter ants are named after the way they feed. They carry leaves that they cut from trees to their nests where they digest them using specialized digestive enzymes that turn them into a paste-like substance.
- A group of jellyfish is called a bloom or swarm. If you were to remove all of the water inside of a jellyfish and place it in the ocean, it would create a giant jelly-like blob that can spread over an area of more than 1 mile in diameter.
- When a group of gorillas goes hunting for food they will usually cooperate and share whatever they manage to capture. This is one reason why human hunters are not allowed to enter gorilla habitats anymore.