Darwin 2.0: Scientists shed new light on how species diverge

Birds that are related, such as Darwin's finches, but that vary in beak size and behavior specially evolved to their habitat are examples of a process called speciation. It has long been thought that dramatic changes in a ...

It's all in the genes—including the tracking device

Parentage-based tagging (PBT) is an emerging genetic-based fish tagging method that involves genotyping hatchery broodstock. PBT is a passive non-invasive approach to stock identification because the parents, not the offspring, ...

Mississippi river diversions: driving land gain or land loss?

River diversions have not created or maintained land, but resulted in more land loss, according to a new paper in the peer-reviewed science journal Restoration Ecology. LSU Boyd Professor R. Eugene Turner and his LSU co-authors ...

Overfished Amazon fish disperse seeds long distances

(PhysOrg.com) -- The gamitana fish, a close relative of the flesh-eating piranha, mostly eats fruit and can carry seeds down the Amazon River as far as 3 miles (5 kilometers), reports a new Cornell study, making it one of ...

Small-scale gold mining impacts river algae in French Guiana

Small-scale gold mining in French Guiana is having long-term effects on diatoms, small single-celled algae, by eliminating the species that are most vulnerable to water turbidity. The findings come from research carried out ...

Subsurface discovery sprouts a new branch on the tree of life

Bacteria are enigmatic by nature, minuscule but staggeringly—sometimes alarmingly—ubiquitous. As critical drivers of everything from global biogeochemical cycles to million dollar industries, they are the little cogs ...

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