Elephant seals are among the most extraordinary marine mammals on Earth, embodying extremes of size, physiology, and endurance that set them apart even within the seal family. They belong to the genus Mirounga, within the family Phocidae, the so-called true or earless seals. Only two living species exist today, the …
It is a pure opioid antagonist, meaning it binds to opioid receptors in the brain and nervous system without activating them, thereby displacing opioid drugs that cause respiratory depression.