https://www.theguardian.com/us-news/2017/jul/14/truck-eels-overturns-slime-cars-highway




According to the Oregonian and the fire department, the animals are not technically eels and are in fact Hagfish – prehistoric creatures with skulls but no jaw or spine, which produce slime through glands on their sides, especially when stressed. They are colloquially known as “slime eels”, for obvious reasons.