Новини от света на спелеологията
Ice Age survivors or stranded travellers? A new subterranean species discovered in Canada
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.
Категории: Новини от света на спелеологията
Central Texas salamanders, including newly identified species, at risk of extinction
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.'
Категории: Новини от света на спелеологията
Volcanoes fed by 'mush' reservoirs rather than molten magma chambers
Volcanoes are not fed by molten magma formed in large chambers finds a new study, overturning classic ideas about volcanic eruptions.
Категории: Новини от света на спелеологията
Evolution: South Africa's hominin record is a fair-weather friend
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.
Категории: Новини от света на спелеологията
A Mexican cavefish with a scarred heart
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.
Категории: Новини от света на спелеологията
Web дизайн разработка PHristoff, Copyright © 2016 Всички права запазени.