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Mammal bones, especially skulls, are used for identification, and to work out the evolutionary history of each species. The jaws of a house cat are more lion- than wolf-like, for example.

The planet’s earliest mammals are an important part of our evolutionary ... The specimen includes a partial skull with teeth, spinal column, rib cage, forelimbs, and hind limbs.

Indonesian authorities have shut down a macabre trade in wildlife skulls and parts online, seizing 94 items and detaining two ...