Scorpions reinforce their claws and stingers with metals

Scorpions fluoresce under ultraviolet light Erwin Niemand/Shutterstock Scorpions strengthen their claws and stingers with metal, effectively turning these weapons into the equivalent of a steel-capped boot. The use of metals to strengthen vulnerable body parts – such as teeth in vertebrates like Komodo dragons (Varanus komodoensis) – is already known, and the areas of a…

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Emperor penguins added to endangered list after rapid decline

Emperor penguins could go extinct by 2100 Stefan Christmann/naturepl.com Two of Antarctica’s most iconic species, the emperor penguin (Aptenodytes forsteri) and the Antarctic fur seal (Arctocephalus gazella), have declined so dramatically and rapidly that they have been classified as endangered on the IUCN Red List. A third Antarctic species, the southern elephant seal (Mirounga leonina),…

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