Biology

The hermaphroditic characteristics of the spotted hyena are completely opposite to those of humans, so is the social system of the spotted hyena also opposite?

Kellogg adopted a 7-month-old female chimpanzee from a charity and named her Goya. Donald and Goya live together every day living, eating and moving around. The surrounding neighbors have since been amazed to find the child next door in and out with the orangutan!

These rabbits have caused an imbalance in the local ecosystem and brought a lot of trouble to the local people's lives. Or catch them and export them to foreign countries?

In fact, the earth's crust itself is a natural source of minerals, many soil and rocks contain a certain amount of salt, careful observation of cattle and sheep should know, cattle and sheep in the grass, but also often "eat soil" or lick the stone, they do so, in fact, the purpose is to obtain the salt

Since the discovery of the first exoplanet in the 1990s, scientists have found more than 4,000 exoplanets, some like the giant gas planets of our solar system, and others like earth-like planets. Some exoplanets may have very harsh environments, perhaps as hot as venus or mercury, or as extremely cold as other planets. Of course there are also exoplanets that may have relatively suitable temperatures, may be located in the habitable zone of a star system, are a potentially habitable planet, and may even be a living planet.

When you think of owls, you might think of harry potter's snowy white pet messenger hedwig, or any number of comical emojis. The owls are the funniest and most adorable of all birds, with their round eyes and occasional "Head tilts" That make them so cute.

Tigers usually rest on the ground. As tigers living in temperate zones, the ability to keep their abdomen warm in winter is a critical factor, so the Northeast tiger has the longest abdominal hair among all tiger subspecies.

In the history of human development, "Learning to use fire" Was undoubtedly a very important point, as through the manipulation of fire, human beings were able to process various ingredients in nature into easily digestible and absorbable cooked food, to exert a powerful deterrent on other animals, to dispel darkness and cold, to harvest light and warmth, and thus step by step, a glorious civilisation has been created.

The existence of reproductive isolation, so that these situations can not occur, even if there are some individuals of different species sometimes complete the mating, but they generally can not produce offspring, or produce offspring can not continue to reproduce

It happens to be the season when mosquitoes and flies go wild, but it is true that there are not as many flies as there are mosquitoes today. This has a lot to do with our improved sanitation today, after all, flies need to lay their eggs on manure pits and rotting food, while many rural toilets have now been converted to squatting, and the shorter disposal cycle for waste has greatly reduced their hatching.