Veículo
New Scientist online (Reino Unido)
Em 2022: 2 notícias
Desde 1995: 6 notícias
Two newly described Amazon fish species are on the brink of extinction
Publicado em 16 maio 2022
When Murilo Pastana at the Smithsonian National Museum of Natural History in Washington DC set out with a group of colleagues to search for fish in less explored regions of the Amazon river basin, he didn’t know what they would find. A few days into their 2015 expedition, Pastana pulled a net from the water and was surprised to see small, vibrant orange fish in the plastic netting. The combination of long, reddish fins and a dark spot in front of the tail of the fish were unlike anything [...]
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Even mild or moderate COVID-19 can affect the cardiovascular system in young adults, study shows
Publicado em 12 abril 2022Face covering rules in Scotland will remain in place until April. On 15 March, Scotland reported 38,770 new covid cases, up from a daily average of 6,900 three weeks ago. As a result, coverings will continue to be required on public transport and in shops, although other covid restrictions will be lifted on 21 March. The BA.2 omicron sublineage, which is even more transmissible than the initial omicron variant, accounts for 80 per cent of Scotland’s SARS-CoV-2 cases, according to first [...]ver notícia -
A newly identified electric eel species has the strongest shock of any living creature, study says
Publicado em 11 setembro 2019Two new electric eel species have been identified in the Amazon basin, including one fish with a record-breaking shock, scientists say. Researchers had previously identified only one species of electric eel in more than 250 years of studying the creatures that lurk in South American waters and stun their prey with electric discharges. However, the new genetic and ecological analysis, published Tuesday in the peer-reviewed Nature Communications, identifies a total of three unique [...]ver notícia -
'New electric eel species produces strongest animal shock'
Publicado em 11 setembro 2019What was once known as a single species of electric eel is actually three different species, with one of the newly classified organism producing the highest voltage discharge of any known animal, according to a study. The research, published in the journal Nature Communications, offers new insights into the origin and production of strong electric discharges in fishes. Electric eels belong to the knifefish family, and are closely related to catfish and carp than to other eel families, the [...]ver notícia -
Optical trick made Amazon seem to grow more when dry
Publicado em 05 fevereiro 2014It always seemed odd. A decade ago, NASA satellite data suggested that the canopy of the Amazon rainforest grew faster during a drought. Apparently, this was just an optical illusion. In 2003, remote sensors showed that the forest canopy reflects more near-infrared light during a drought. Because young leaves are greener – and reflect more infrared light – than old foliage, analysts assumed this was evidence that rainforests grew better during dry years. A new study suggests [...]ver notícia -
Interview: Biofuelling the future
Publicado em 20 maio 2009You can't grow biofuel without cutting down trees, right? Not so, says plant scientist Marcos Buckeridge who tells Jan Rocha how Brazil can supply the world with green ethanolver notícia