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The two major types of fish are bony fish and cartilaginous fish. Though they both live in the water, these two groups have some different characteristics that make them easily distinguishable from one another. The main differences between bony and cartilaginous fish include their skeletal structure, appearance, habitat preference, diet, and life span. The guide … Read more
Birds and reptiles share a lot of similarities, but they also have their differences. It can be hard to tell the difference between these two creatures when you first look at them. Birds and reptiles are both cold-blooded animals, meaning that their body temperature is controlled by the environment around them rather than internally regulated … Read more
Birds and bats are both animals that fly. However, many people do not know the difference between these two animals. This article will discuss the differences between birds and bats in terms of their physical appearance, habitat, diet, behavior patterns, and flight patterns. Bats are small mammals that belong to the order Chiroptera which means … Read more
The heart has four chambers, two on the right and two on the left. The top chambers are called atria, while the bottom ones are called ventricles. Atria has thinner walls than ventricles but they hold more blood because of this. Ventricles contract to pump blood out of them, while atria push it up into … Read more
There is no other animal that man has fought with such energy for so long in so many places as the rat! There are many species of animals called rats, and some of them are harmless and interesting animals. But there are two common rats, the black rat, and the brown rat, that have given rats a … Read more
Jellyfish are among the strangest sea creatures because they are almost entirely made of jelly. They do not look like fish and they are not related to them at all. They protect themselves with a sting that is unpleasant and can sometimes be very dangerous. Jellyfish are shaped like an overturned bowl. The digestive system … Read more