The Difference Between Invertebrate and Vertebrate Animals.

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Do you know the difference between Invertebrates and Vertebrates? In the animal kingdom many animals have no internal skeleton or even a backbone (spinal column). We call animals without a backbone or skeleton invertebrates. Those that have a skeleton are called vertebrates. Examples of vertebrates include fish, birds, reptiles, and mammals. Humans are considered to […]

How Did Birds Survive While Dinosaurs Went Extinct After The Asteroid Apocalypse?

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Today, about 10,000 bird species exist worldwide. But there are debates that the exact number could almost be twice that. These warm-blooded vertebrates are well-known for their colorful plumage, lightweight, smooth feathers for flight, harmonious songs, and amusing behaviors. But did you know that modern-day birds actually evolved from dinosaurs? Yes. You read that right.  […]