So it's no surprise that muscle function is associated no only with physically protecting offspring from harm, but is directly influenced by sex hormones. (philmaffetone.com)
Although they spent most of their lives in water, the female protected her offspring by swallowing her eggs. (landscapesandcycles.net)
It's one of the things that makes parenting hard; going against your instincts to protect your offspring at all costs and, instead, teaching them how to be better humans. (romper.com)