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Hace 1 día · Plot of extinction intensity (percentage of marine genera that are present in each interval of time but do not exist in the following interval) vs time in the past. Geological periods are annotated (by abbreviation and colour) above. The Permian–Triassic extinction event is the most significant event for marine genera, with just over 50% (according to this source) perishing.
Hace 16 horas · In Mexico, the volcano axolotl, a species of amphibian salamander, is in critical danger of extinction as rivers where they develop are drying out. An environmental group has launched a ...
Hace 16 horas · The leatherback sea turtle is one of seven sea turtle species facing extinction and it plays a huge role in the marine ecosystem. The Phuket Marine Biological Center (PMBC) aims to protect it by ...
Hace 16 horas · Graz researchers record rapid extinction of species. The colorful European Roller is as good as extinct in Styria. Two researchers from Joanneum Research are making an important contribution to ...
Hace 16 horas · Selon les spécialistes, au minimum 1 000 individus sont nécessaires pour permettre la survie ou le maintien d'une espèce. Cependant, le nombre de mâles reproducteurs doit être suffisamment élevé parmi la population et les femelles doivent être fertiles. Ainsi, le risque d'extinction n'est plus critique, mais l'espèce mérite malgré ...
Hace 16 horas · Il y a environ 34 millions d’années, l’Europe a connu un bouleversement majeur appelé la ’Grande Coupure’. Au cours de cet événement, la faune européenne a subi une extinction massive ...
Hace 16 horas · Face extinction. This has gradually led to famine, hunger and malnutrition, especially among children, which have often led to outbreak of life-threatening diseases. Cooper was speaking to news reporters on the side-lines of a United Nations Environment Programme biodiversity conference at Gigiri UN complex in Nairobi.
