Mojave desert tortoise officially joins California's endangered list
The California Fish and Game Commission has formally recognized the Mojave desert tortoise as endangered.
The California Fish and Game Commission has formally recognized the Mojave desert tortoise as endangered.
Plants & Animals
Apr 22, 2024
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14
Mother Nature is an artist, but her craft of creating animal faces requires more than a paintbrush and palette. Such highly complex shapes originate from their respective transient neural crest cells.
Cell & Microbiology
Apr 12, 2024
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10
Frogs belong to a group of animals called amphibians—the most endangered group of species on the planet. Two out of every five amphibian species are currently threatened with extinction, and this figure is rising.
Plants & Animals
Apr 10, 2024
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29
Currently 14% of the world's 11,000 bird species are threatened with extinction. A new study assessed the populations of bird species across a spectrum of landscapes from pristine habitats to human-dominated environments.
Plants & Animals
Apr 5, 2024
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0
Brown rats are the undisputed winners of the real rat race. New research suggests that they crawled off ships arriving in North America earlier than previously thought and out-competed rodent rivals—going on to infuriate ...
Plants & Animals
Apr 3, 2024
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191
New research has shown that the special status of sacred forests also gives them important ecological characteristics, in particular a high resilience that enables them to recover after periods when they were damaged and ...
Ecology
Apr 3, 2024
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1
The great gray owl has long been thought of as a sentinel of the Alaska wilderness, keeping watch over snow-laden forests as far north as the Brooks Range, well away from human populations.
Plants & Animals
Apr 1, 2024
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83
An international team of 25 scientists has proposed a roadmap for how to prevent the next pandemic by conserving natural areas and promoting biodiversity, thereby providing animals with enough food, safe havens and distance ...
Plants & Animals
Mar 26, 2024
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98
A new study combining genetic, paleoecological, and archaeological evidence has unveiled the Persian Plateau as a pivotal geographic location serving as a hub for Homo sapiens during the early stages of their migration out ...
Archaeology
Mar 25, 2024
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49
An artificial intelligence system developed at EPFL can produce 3D maps of coral reefs from camera footage in just a few minutes. It marks a major leap forward in deep-sea exploration and conservation capabilities for organizations ...
Ecology
Mar 19, 2024
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71
The term world population commonly refers to the total number of living humans on Earth at a given time. As of 29 July 2009, the Earth's population is estimated by the United States Census Bureau to be 6.774 billion. The world population has been growing continuously since the end of the Black Death around 1400. There were also short term falls at other times due to plague, for example in the mid 17th century (see graph). The fastest rates of world population growth (above 1.8%) were seen briefly during the 1950s then for a longer period during the 1960s and 1970s (see graph). According to population projections, world population will continue to grow until around 2050. The 2008 rate of growth has almost halved since its peak of 2.2% per year, which was reached in 1963. World births have levelled off at about 134-million-per-year, since their peak at 163-million in the late 1990s, and are expected to remain constant. However, deaths are only around 57 million per year, and are expected to increase to 90 million by the year 2050. Since births outnumber deaths, the world's population is expected to reach about 9 billion by the year 2040.
This text uses material from Wikipedia, licensed under CC BY-SA