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Some spiders can transfer mercury contamination to land animals, study shows (phys.org)

Sitting calmly in their webs, many spiders wait for prey to come to them. Arachnids along lakes and rivers eat aquatic insects, such as dragonflies. But, when these insects live in mercury-contaminated waterways, they can pass the metal along to the spiders that feed on them.

265-million-year-old fossil reveals oldest, largest predator in South America, long before the rise of dinosaurs (phys.org)

Dinosaurs have quite the reputation for being the largest, fiercest predators in life's history. Yet, 40 million years before dinosaurs ruled, Pampaphoneus biccai dominated South America as the biggest and most bloodthirsty meat eater of its time.

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South Africa's great white sharks are changing locations—they need to be monitored for beach safety and conservation (phys.org)

South Africa is renowned for having one of the world's biggest populations of great white sharks (Carcharodon carcharias). Substantial declines have been observed, however, in places where the sharks normally gather on the coast of the Western Cape province. Sharks congregate at these locations to feed, interact socially, or...

A Master of Disguise – Scientists Discover New “Cryptic” Species of Leaf-Tailed Gecko (scitechdaily.com)

A global team of scientists has identified and named a new species of leaf-tailed gecko from northern Madagascar, known as Uroplatus garamaso. Leaf-tailed geckos are masters of camouflage. Some species have skin flaps around the whole body and head, complemented by flat tails.

Curious and cryptic: New leaf insects discovered (phys.org)

An international research team including the University of Göttingen has described seven previously unknown species of leaf insects, also known as walking leaves. The insects belong to the stick and leaf insect order, which are known for their unusual appearance: they look confusingly similar to parts of plants such as twigs,...

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