Insects have no vocal cords, why they can make sounds?
Human vocalization is caused by the vibration of the vocal cords as air passes through the throat. Different tones are formed by various positions of the mouth and different movements …
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How do spiders build nets between two trees that are far apart?
When you see a spider web stretched between trees on both sides of a river or between two distant corners of a house, you must wonder how the web is …
Why are the small bugs stuck on spider webs all empty shells?
Spider webs are hunting grounds for spiders. Flies, horseflies, mosquitoes, beetles, and other pests are the targets of spider hunting. The small flies stuck to the web are like fish …
Why do hermit crabs live in snail shells?
If you go to the beach to collect marine specimens, in a small bay, you can see a creature similar to shrimp but also crab-like, carrying a “house” on its …
Why do prawns migrate in groups?
When terrestrial animals migrate collectively in a certain direction, it’s called “migration.” For aquatic animals, when they gather and move towards a particular area, it’s termed “migration” as well. In …
Why do crabs spit foam?
When we buy crabs, we always choose those that have hard shells and are actively producing a lot of white foam. What’s the reason behind this? As we know, crabs …
Why do crabs sometimes grow small one foot?
The limbs of a crab are symmetrical, with a pair of cheliped (pincer-bearing) legs and four pairs of walking legs growing on either side of its body, usually of similar …
Why do mature crabs go to sea?
Crabs, commonly known as river crabs or hairy crabs, are scientifically referred to as Chinese mitten crabs. They are famous freshwater crabs in China, distributed widely from Liaoning in the …
Why do shrimps and crabs change color?
Many animals have colors on their bodies that can change with variations in their living environment. These colors, resembling their surroundings, serve as a form of protection for themselves. Shrimps …
Why snails have a saliva line where they crawled?
Snails are terrestrial gastropod mollusks that are often found in vegetable gardens after rain, where they damage vegetables and other plants, making them harmful animals. Snails have four retractable tentacles. …