Frogs always jump, why do toads always climb?

Frogs like to walk, because frogs like to stay in the pond and are good at swimming. When swimming, you mainly use your hind legs. If you swim often, your hind legs are developed and much stronger than your front legs. It is more suitable for frogs to run on their hind legs. If it climbs over, its forelimbs look different, but it seems weak. Frogs are amphibians. When swimming in the water, they mainly rely on the strength of their hind legs. Frogs have developed hind legs, and life on land will bounce! At the same time, it is easier, faster and more helpful to catch food! In any case, in fact, biological development is an instinct to seek advantages and avoid disadvantages!

Obviously, biology is not very interested in why we should look at this question. Depending on the theme, frogs and toads may have a wide range of meanings. Because there are not many creatures, frogs only remember that frogs and toads are toads, but there are some frogs under toads. Back to the question, in fact, most frogs can swim farther and faster than toads (there are exceptions, of course), and they can't beat you. This is the way to protect yourself. My name is-faster than anyone. In addition, frogs and bullfrogs exist at the top of the food chain in many places. Some bullfrogs produce a pair of teeth, which are very useful for mating, fighting or hunting. This is a very cruel carnivore. The word self-protection is definitely not suitable for that body. In fact, what I want to say most is that this problem is eating jujube pills.

My postgraduate research topic is antibacterial peptides found in the skin secretion of a frog. Most frogs and amphibians live in a complex environment, so it can be said that dirty things need to be better understood. Their skin secretes secretions to protect them. After all, skin is the first line of defense. What's in this secretion? Protein, peptides, etc. Everything is in a mess, and many things are in a mess. Moreover, some protein or peptides have bactericidal effect, some protein can kill cancer cells, and of course, it can also kill red blood cells in general. Don't feel great. Frogs in homework can be kept as pets. Not poisonous, stupid and stupid. I only introduce what I know.

Frog's structure is more optimized than toad's, not to mention the reasonable problem, which can only be maintained by species. The persistence of species does not depend on the strength of individuals, but on the overall ability to adapt to reproduction. Otherwise, dinosaurs would not have died out so quickly, and some smaller and weaker animals and insects survived tenaciously. On that day, humans exterminated mice. Maybe they bred well.