What animal breathes through its bottom and eats with its feet?

This bizarre animal uses its guts, not its heart, to pump oxygen through its body. Strange creatures with eight spindly legs that crawl along the ocean floor, sea spiders may look like arachnids, but they're actually not.

1. What animals breathe out of their Buttholes?

What animals breathe out of their Buttholes?

Loaches, catfish, sea cucumbers and orb-weaving spiders can also use their hindgut to oxygenate to survive in emergencies. A team of Japanese scientists has shown it is possible for mammals to absorb oxygen via the anus.