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movement, and ultimately the likelihood of an attack on humans.Sharks are cold-blooded animals, also known as ectothermic, which means their body temperature varies according to the temperature of the water surrounding them. As a result,they are more active in warmer ...
If sharks aren't interested in eating humans, why do they attack us? The first clue comes in the pattern that most shark attacks take. In the majority of recorded attacks, the shark bites the victim, hangs on for a few seconds (possibly dragging the victim through the water or under the...
题目Wolves strike fear into the hearts of many species, humans included. Our fear of them has brought them to the edge of dying out, as we have cruelly killed them as competitors and trouble-makers. But researchers are discovering that the very fear they put into prey(被...
How many percent of butterfly species are suffering the population declination?A. More than 59%.B. More than 50%.C. More than 45%.D. More than 75%. C. D 相关知识点: 试题来源: 解析 答案:D该题您未回答:х 该问题分值: 2.5答案:DSSS STMPI.E STN ...
Researchers at Shark Lab, a biology unit of the California State University, Long Beach, recently published findings of a study in which they used drones to learn the habits of juvenile white sharks along the Southern California coastline, and how closely they swam to humans. Over the course ...
All 75 species of whale are carnivores, but their hunting methods vary considerably. Toothed whales, such as the sperm whale and the killer whale (or orca), hunt in the same basic way as sharks. They have a row of strong teeth, and they tear into their prey or swallow it whole. Many...
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The team looked at the retinal cells of 17 species of sharks caught off Queensland and Western Australia and found out that the cells are responsible for sharks' color blindness.(西澳大利亚大学的一个研究小组研究了许多不同种类鲨鱼的视觉系统,他们发现眼睛设计的多样性反映了鲨鱼物...
Lizards that can outrun blazes. Birds that lay ash-colored eggs. Wildlife may have a limited ability to evolve in this fiery new era known as the Pyrocene.