World's oldest known land animal, Jonathan the tortoise, still alive at nearly 200

Jonathan the tortoise, the world's longest-living known land animal, remains alive despite claims of his death spreading on ...

"Weird blob" creature thought to be the world's oldest octopus isn't an octopus after all. Here's what scientists found.

Scientists have found evidence that a 300-million-year-old sea creature previously thought to be the world's oldest octopus is actually a nautilus relative.

World’s oldest known tortoise still very much alive and (slowly) kicking despite rumor to the contrary

Reports on April Fools’ Day of the death of the world’s oldest living land animal — a 193-year-old tortoise called Jonathan — ...
Science Daily

The world’s “oldest octopus” was never an octopus

A famous “oldest octopus” fossil has been exposed as a case of mistaken identity. Advanced imaging revealed hidden teeth ...