Word: speciesism
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Dates: during 2000-2009
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Early signs of divergent evolution in Heliconius butterflies in Ecuador may reveal a missing link to understanding how species form, according to a recent study by Harvard researchers.
“In nature, you can find things that are clearly the same or clearly different species,” said research fellow Marcus R. Kronforst, an author on the study affiliated with the Faculty of Arts and Sciences Center for Systems Biology.
More than a third of the 47,000 animal and plant species tracked by the International Union for Conservation of Nature face extinction, according to the group's latest Red List--a study used to help governments identify species in need of protection.
Off the coast of Israel, where tropical species have moved in through the Suez Canal, jellyfish floated in swarms more than 100 km long and 2 km wide. Blooms of Mnemiopsis, first documented off Israel last winter, clogged the filters of a desalination plant that supplies coastal communities with 100...
Climate change, too, is likely playing a role. As ocean temperatures rise, jellyfish are reproducing faster, and tropical species are beginning to extend their range. "It could be a big economic problem for countries like Australia," says Anthony Richardson, a marine biologist at the University of Queensland in Australia. If...