This was a weird year for many—including Mother Nature.

This year brought us two-headed sharks, anal-drumming caterpillars, and a spider with an internal disco ball—you can’t make this stuff up.

For our biggest fans of the bizarre, we’ve rounded up 2023’s strangest animal discoverie

From a shark with a sex organ on its head to a spider with a flashing disco ball, we rounded up Earth’s oddest offerings of the year.

10) Longest-Lived Vertebrate May Live 500 Years

9) Extremely Rare White Giraffe Spotted

2) Gecko That Looks Like a Leaf

7) Caterpillar Drums Its Anus to Find Friends

6) Disco Spider Pulsates With Baffling Color

5) Two-Headed Sharks Keep Popping Up

4) Why This Animal’s Pee Smells Like Buttered Popcorn

3) Arctic Foxes ‘Grow’ Their Own Gardens

2) Spider That Looks Like a Leaf

1) Deep-Sea Ghost Shark Filmed for First Time