Ever smell a hyena??
No?! Really?? Oh… well they stink. BAD.
Mainly from a scent gland under their tails.
Many animals like to rub their butts against stuff to make their presence known.
The same is true for hyenas. They can tell sex, age, family or clan and more just by smelling other hyenas' markings.
Scientists have long theorized that these smells aren't made by the animals themselves but