Something I learned about over the weekend, a wonderful pun on Wikipedia is at risk of extinction. If it happens though it'll be for the right reasons at least.
On the "List of Cetaceans" page they have what you'd expect, against each whale in the list is a picture or drawing. Where they have neither they have "[cetacean needed]" which is a glorious pun!
They're down to one remaining, if someone is able to document Deraniyagala's beaked whale in the wild it'd be great news for conservation, but a sad day for puns.