Where do the gender differences in the human pelvis come from?

The pelvis is the part of the human skeleton with the largest differences between females and males. The female birth canal is on average more spacious and exhibits shape features that enable birth of a large baby with a ...

Essential mechanism of symbiosis found in Hawaiian squid

(Phys.org) —Experiments at UW-Madison with a small squid that glows in the dark have uncovered a complex conversation that allows the newly hatched squid to attract the glowing, symbiotic bacteria that disguises it against ...

When parasites catch viruses

When humans have parasites, the organisms live in our bodies, co-opt our resources and cause disease. However, it turns out that parasites themselves can have their own co-habitants.

Childbirth versus pelvic floor stability

Human childbirth is comparatively difficult because our babies' heads are large relative to our birth canals. This tight 'fetopelvic' fit increases the risk of obstructed labor, which in turn has potentially dire outcomes ...

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