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- News, sport and opinion from the Guardians US edition | The . . .
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- An Introduction to Eusociality | Learn Science at Scitable
Thrips are small haplodiploid insects in the order Thysanoptera (Crespi et al 1992) Of about 5,000 species, about 300 form nests in plants called galls, feeding on plant tissue within
- Geobiologists shine new light on Earth’s first known mass . . .
Geobiologists shine new light on Earth’s first known mass extinction event 550 million years ago The work, led by postdoctoral associate Scott Evans, shows a major loss of diversity during the Ediacaran Period, which lasted from 635 million to 540 million years ago, with decreased global oxygen levels invoked as a major cause of mass deaths of scores of species
- Arctic hare facts, distribution population | BioDB
Class Mammals (6,400 sp) Order Lagomorpha – Lagomorphs (111 sp) Family Leporidae – Rabbits (77 sp)
- The Evolution of the First Mammals - ThoughtCo
As mentioned above, the first mammals evolved toward the end of the Triassic period from a population of therapsids, the "mammal-like reptiles" that arose in the early Permian period and produced such uncannily mammal-like beasts as Thrinaxodon and Cynognathus By the time they went extinct in the mid-Jurassic period, some therapsids had
- These unique animals have no close living relatives . . .
There are 350,000 species of beetles—that’s an awful lot of relatives And yet some animals, like humans, have no fellow species in existence We’re all alone
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