Red-eyed treefrog embryos hatching after flooding

This is 22 minutes of video sped up to 40 seconds. It shows 5-day-old red-eyed treefrog embryos [...]submerged underwater. They change position many times before they hatch. Embryos in air also move around inside their egg capsules, but less often -- except, if they put their gills near the back, where there isn't enough oxygen, they don't stay there long.

Tags: biology, cas, warkentin lab, herpetology, warkentin, treefrog, casbi506, casbi224

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