Getting Lippy

You're looking into the lippy face of the European eel (Anguilla anguilla). These freshwater eels are under threat. Their population looks to be down 90% since the 1970s, though it seems there isn't a consensus in the scientific community as to why (or any single cause).

As a side note, their young are so transparent that you can read a "newspaper through them". My little brother, who hasn't seen the sun since he discovered the PS3, is nearly as see-through.

Thanks for the link, Ida.

Photo source: BBC