A group of sperm whales off Western Australia's southern coast unleashed an unusual defence on an attacking orca pod - a "cloud of diarrhoea". Their poo-clear deterrent thwarted the orcas’ hunt at the ...

A closer look: Sperm whales use poop against orcas ...

One of the earliest recorded recipes for ice cream called for an ingredient few people today would (or could) reach for as a flavoring agent: ambergris, a grayish-white substance that's a byproduct of ...