In order to find the reason why zebras have stripes, a team of scientists led by Professor Tim Caro set to work. They began by comparing the thickness, location, and the stripes on seven species of zebras that live in various geographic locations. They then examined some factors that may ...
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In paired-choice field experiments in a Kenyan savannah, we found that hungryStomoxysflies released in an enclosure strongly preferred to land on uniform tan impala pelts over striped zebra pelts but exhibited no preference between the pelts of the zebra species with the widest stripes and the ...
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Finally, we tested pelts from the zebra species with the widest stripes overall (the plains zebra, the only species with wide stripes across most of its body17) and the narrowest stripes (the Grevy’s zebra, Equus grevyi) under the same conditions, to investigate whether cross-species ...
Iris Adam,a scientist at the University of Southern Denmark says,birds have "a drive to sing".This means hours every day for some species,and that takes a lot of energy.However,singing can be dangerous. "As soon as you sing,you show yourself,for example,where you are and that you ...
To figure out whether the muscles that produce birdsongs require daily exercise, Adam designed an experiment on zebra finches-the little Australian songbirds. She prevented them from singing for a week by keeping them in the dark cage almost around the clock. Light is what galvanizes the birds...
一只母海豹和一只小海豹.5. a group of wild animals of one species that remain together: antelope or elephants or seals or whales or zebra. 一群群居的同种野生动物;羚羊、大象、海豹、鲸或斑马。6. He picked up a piece of seal meat. 他又捡起一块海豹肉。7...
The Imperial Zebra is the largest and more in endangered of all the zebra species,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百
High-quality and complete reference genome assemblies are fundamental for the application of genomics to biology, disease, and biodiversity conservation. However, such assemblies are available for only a few non-microbial species1–4. To address this iss