Science Daily - Caving news

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Обновен: преди 2 часа 57 мин.

Ice Age survivors or stranded travellers? A new subterranean species discovered in Canada

Вт., 02/05/2019 - 18:54
The discovery of a new to science species of rare and primitive arthropod in a cave that was covered by a thick ice sheet until recently is certain to raise questions. Researchers describe a new species of cave-dwelling, insect-like dipluran from the island of Vancouver (Canada) and discuss its origin.

Central Texas salamanders, including newly identified species, at risk of extinction

Пон., 01/14/2019 - 23:11
Biologists have discovered three new species of groundwater salamander in Central Texas, including one living west of Austin that they say is critically endangered. They also determined that an already known salamander species near Georgetown is much more endangered than previously thought. They warn that more severe droughts caused by climate change and increasing water use in Central Texas have left groundwater salamanders 'highly vulnerable to extinction.'

Volcanoes fed by 'mush' reservoirs rather than molten magma chambers

Вт., 12/04/2018 - 17:25
Volcanoes are not fed by molten magma formed in large chambers finds a new study, overturning classic ideas about volcanic eruptions.

Evolution: South Africa's hominin record is a fair-weather friend

Ср., 11/21/2018 - 21:24
The fossil record of early hominins in South Africa is biased towards periods of drier climate, suggests a study of cave deposits. This finding suggests there are gaps in the fossil record, potentially obscuring evolutionary patterns and affecting our understanding of both the habitats and dietary behaviors of early hominins in this region. South Africa's highest concentration of early hominin fossils comes from the 'Cradle of Humankind' caves northwest of Johannesburg.

A Mexican cavefish with a scarred heart

Вт., 11/20/2018 - 19:59
Scientists are studying a guppy-sized, blind, translucent fish that lives in the cave systems of northern Mexico to figure out why some animals can regenerate their hearts, while others just scar.
 

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