Water flea (Daphnia) lifespan and age in human years
Average lifespan about 20 days
Water flea (Daphnia) live about 20 days on average. Below is a chart converting Water flea (Daphnia) age into human years, plus a calculator.
How old in human years?
Age
Water flea (Daphnia) age chart in human years
Shaded rows are equivalent to human age 60+.
| Water flea (Daphnia) | Human age | Stage |
|---|---|---|
| 2 days | 5 | Child |
| 4 days | 10 | Child |
| 6 days | 16 | Teen |
| 8 days | 23 | Adult |
| 10 days | 33 | Adult |
| 12 days | 43 | Middle age |
| 14 days | 53 | Middle age |
| 16 days | 64 | Senior |
| 18 days | 74 | Senior |
| 20 days | 84 | Elderly |
| 22 days | 94 | Elderly |
| 24 days | 104 | Elderly |
| 26 days | 114 | Elderly |
Sources
How we convert ages: method.
More Microscopic life
Roundworm (C. elegans)Lifespan about 21 days
Tardigrade (water bear)Lifespan about 12 months
Moina (water flea)Lifespan about 12 days
Cyclopoid copepodLifespan about 1 months
Rotifer (Brachionus plicatilis)Lifespan about 4 days
Bdelloid rotiferLifespan about 14 days
Brine shrimp (Artemia)Lifespan about 3 months
HydraLifespan Biologically immortal (can revert to youth)
PlanarianLifespan Biologically immortal (can revert to youth)