Animals

#703 Is a starfish a fish?

Is a starfish a fish? No, starfish are not fish. Fish are vertebrate animals that live in the sea, have gills to breathe through, have a two chambered heart, are cold blooded, and have a brain and central nervous system. Starfish live in the sea, but that is where the similarity stops. These days, many

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#694 Are symbiotic relationships always beneficial to both parties?

Are symbiotic relationships always beneficial to both parties? No, they aren’t. There are mutualistic, commensalistic, and parasitic symbiotic relationships. The word symbiosis means “a close, prolonged association between two or more different biological species”. It originates with the Greek word symbiosis and means living together. We tend to think that a symbiotic relationship is beneficial

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#688 Why can fish swim so fast?

Why can fish swim so fast? They move their bodies from side to side in such a way that they produce a backwards moving wave in their bodies, which pushes against the water, producing thrust. Also, they are very streamlined. First, we should clear up the fact that all fish are fast. There are some

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