| Title | : | Mayfly Eggs Hatching a Minute After Being Laid |
| Duration | : | 3 minutes, 42 seconds |
| Uploader | : | Stroud Water Research Center |
| Added On: | : | 11 December, 2013 |
| Views | : | 131.2K times |
| Likes | : | 0 |
| Source | : | YouTube |
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
