After they procreate, many animal species die.
This reduction is especially concerning in octopus moms: in most species, when an octopus mother's eggs are close to hatching, she stops feeding.
She then abandons her protective huddle over her children and turns on herself.
She might thrash herself against a rock, tear at her own skin, and even eat her own arms.
Researchers have now identified the molecules that appear to regulate this deadly frenzy.
After an octopus produces eggs, her body adjusts its cholesterol production and utilization, which leads to a rise in steroid hormone production