根据第四段“For their work, researchers analyzed measurement data collected from 9,943 bird species, which are about 99% of all living bird species.(研究人员为了他们的工作,分析了9943种鸟类的测量数据,这些鸟类约占所有现存鸟类的99%)”可知,研究人员们为这项研究分析了大多数鸟类的数据。故选B。 (2...
raminetheideathatanindividual'sphysicaldevelop mentcanchangeto fitchangingenvironmentalcondit ions.(1)Inthestudy, thesizeandmassofbirds fellbu tthewingspanincreased, which. A .permittedbirdstoflyhigherandstronger B.madebirds'longmigrationwithsmallerbodiesp ossible C.couldprotectbirds frombeingextinctin...
which means they have less than 10 or 15 years to go extinct, and the reason is because they are falling prey by consuming livestock that has been treated with a painkilling drug like Diclofenac. This drug has now been banned for veterinary use in India, ...
We’re learning more about what they endure as they fly thousands of miles—and how humans and climate change are making it tougher for them.
Do false and pygmy killer whales live up to the fearsome reputation of their orca cousins? Why are false and dwarf sperm whales so small in comparison to the enormous ‘real’ creature. Which whales are baleen and which are toothed? Why are humpback whales so different from other baleen ...
In Europe, the medieval period witnessed widespread use of dovecotes, which were a symbol of status. Although Romans may have introduced the pigeon to Great Britain, it is more likely that it was the Normans, as there are references to pigeons and dovecotes in the Domesday Book of 1086. The...
and nesting grounds covering more than 300 square kilometres on which enormoustrees would crash to the ground under the weight of the birds.Astonishingly , the passengerpigeon is now extinct.A combination of habitatdestruction and commercial killing meant thatthe last surviving specimen died in Cincinn...
Our feline friends are killing billions of birds every year. A fan of both animals believes there are humane solutions.
be precluded include those which most students already know the answers to or that may require unavailable resources. Students should be encouraged to generate their own questions however some possibilities include: What are the likely causes of decline in the frog population? Why are frogs ...
Some island hotspots where flightless birds were prevalent include New Zealand, with 26 species, and Hawaii, with 23 species, all of which are now extinct. Lacking a crucial defense strategy, such as flight, ratites died out due to easy and opportunistic predation. Human hunters, along with ra...