Ever wonder what the very first animals were? In this video, I go over when the first animals evolved, what they were like, and what may have triggered their evolution! ;D
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0:00 Microbial life dominated Earth history
2:32 Cambrian was NOT the first Explosion
3:44 Ediacaran Biota
5:12 Ediacaran mysteries & controversy
6:38 Were Ediacaran Biota animals?
7:59 Were Ediacaran animals related to Cambrian animals?
10:23 Comparing Ediacaran & Cambrian animals
11:56 Likely Ediacaran relationships
12:25 900 Million yr old sponges?!
14:26 What triggered animal evolution?
15:36 How viscosity led to multicellularity
18:21 Opportunities in this field!
References:
Halling et al., 2024: doi.org/10.1101/2024.02.06.57...
Potential Sponge fossil 890 Mya! doi.org/10.1038/d41586-021-02...
doi.org/10.1038/s41586-021-03...
www.ediacaran.org
Earth System History: amzn.to/3v1Iy0G
Geomicrobiology: amzn.to/2WAloTR
Ediacaran Extinction & Cambrian Explosion- doi.org/10.1016/j.tree.2018.0...
Anoxia during Ediacaran- doi.org/10.1126/sciadv.aan8983
Ediacaran Mass Extinction- doi.org/10.1098/rspb.2015.1003
Hydrogen sulfide increase in ocean during Ediacaran-Cambrian transition- doi.org/10.1038%2Fnature07072
GEO GIRL Website: www.geogirlscience.com/ (visit my website to see all my courses, shop merch, learn more about me, & donate to support the channel if you'd like!)
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Life's Engines: amzn.to/3w1Nhke
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