Why do most fishes have their abdomen upward after death?
When fish are alive, they can maintain a certain position in the water, neither floating to the surface nor sinking to the bottom. This is because most fish have an …
Why can fish see the front, back and above objects at the same time without turning around?
The human eyeball is a very complex visual organ, structured like a miniature camera. When we look at objects around us, light reflected from these objects passes through the cornea …
Why are there no live hair tail and yellow croaker in the market?
Most people have tasted the delicious ribbonfish and croaker. However, not everyone has seen live ribbonfish and croaker swimming freely. These live fish are also not available for purchase in …
Why do fish sometimes jump out of the water?
At night, when we walk by the fish pond, we often hear “plop plop” sounds coming from the pond. Timid and superstitious people might think this is caused by water …
Why do fish scales sparkle?
You must have seen beautiful goldfish or brightly colored tropical fish. They dance gracefully in the water, swimming continuously; their bodies, covered in scales, shimmer with a gemstone-like brilliance. You …
Why can the fish stop in the water?
In front of a fish pond or aquarium, we often see fish motionlessly staying in the water, their serene expressions truly captivating. It even makes one want to jump in …
Many animals winter hibernate. Why do sea cucumbers summer hibernate?
Sea cucumbers are echinoderms that dwell in the mud and sand at the bottom of the ocean, from the deep sea to shallow waters. They can be found all along …
When sea cucumber are evading the enemy, why dont they die if they throw their intestines away?
In the crevices of seaweed-dense underwater rocks lives an animal that looks like a cucumber and is covered in fleshy spines. This is the famous delicacy known as sea cucumber. …
Why do africans call ants Ground Scavengers?
There are many species of black ants, and they can be found from the cold regions to the tropics, with a particularly high prevalence in the warm, year-round climates of …
Why are there more ants in place with more aphids?
Every March, when the weather is warm and the sun is bright, many early spring crops are often infested with clusters of aphids. On these aphid-infested crops, you can also …