Most rhinoceros species went extinct before the Pleistocene era. Geneticists now try to reconstruct the three extinct species to fill in the gaps of the species' evolutionary family tree by analyzing their genomes and the genomes of five living rhino species.
Scientists from the University of Washington are breeding sunflower sea stars in the lab after the IUC declares the 24-armed sea creature as a critically endangered species. They hope to release these lab-grown sea stars in the ocean to save them from extinction.
Xerces blue butterfly has been the first insects that was pushed to extinction by human activities. With the butterfly gone, researchers identified whether the insects were just a group swarming in San Francisco Bay, or a species of their own.
The International Union for Conservation of Nature o IUCN recently said that more than 37,400 animal species are at risk of disappearing or becoming extinct. This also puts human survival under threat.