Can humans live on Mars?

Metallic robots constructed by ingenious humans can survive on Mars. But what about future human astronauts?

Status shift for whale pelvic bones

For decades, scientists assumed that the relatively small pelvic bones found in whales were simple remnants of their land-dwelling past, "useless vestiges" that served no real purpose, akin to the human appendix or tailbone.

Compounds shared by all worms may lead to parasite treatment

(Phys.org) -- Worms are important decomposers in soil and are great for fishing, but in humans, the slimy wrigglers spell trouble. Hookworms, whipworms, Ascaris, Guinea worms and trichina worms are just a few parasitic nematodes ...

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