In animal battles, cheaters can win

Two knights stand face to face. One has a plain average-sized sword. The other has a massive fear-inducing sword stained with blood. After one quick look at it, the first knight quickly puts his average sword away, backs ...

Exoskeletal microstructure of extremely hard coconut crab claws

The NIMS Research Center for Structural Materials and the Okinawa Churashima Foundation Research Center jointly ascertained the microstructure and chemical composition of the extremely tough exoskeletons of coconut crab claws, ...

Why frogs can't regenerate lost limbs like axolotls

In Lake Xochimilco of central Mexico dwells a rare salamander, the axolotl (Ambystoma mexicanum). In the wild, the axolotls do not metamorphose: adults very much resemble their larval counterparts and keep the external gills ...

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