Upload

Loading...

Mayfly Eggs Hatching a Minute After Being Laid

69,784

Loading...

Loading...

Loading...

Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Dec 11, 2013

Mayflies are an indicator species for clean streams and rivers. Most mayflies lay their eggs immediately after mating and the eggs then take anywhere from 10 days to many months to hatch. Cloeon cognatum is an exception because it is ovoviviparous, which means that a mated female holds her eggs internally until embryonic development is complete (about 18 days), after which she lays them in water and they hatch immediately. This female was dropped onto the water surface moments before the video started. Video credit: David H. Funk

Loading...

When autoplay is enabled, a suggested video will automatically play next.

Up Next


Sign in to add this to Watch Later

Add to