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Not all animals have a mouth, or even need one to eat! These different feeding strategies can teach us a lot about our ancestors and how they went from not needing a mouth at all to only eating with one.

Hosted by: Hank Green

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Sources:

Trichoplax adhaerens
https://doi.org/10.1093/icb/icm015
https://doi.org/10.1371/journal.pone….
https://doi.org/10.1038/nature07191
https://doi.org/10.1016/j.cub.2014.05…
Bryozoans
https://doi.org/10.1007/s12526-019-00…
https://animaldiversity.org/accounts/…
https://doi.org/10.1666/13-029
https://doi.org/10.1111/pala.12189
Hydra vulgaris
https://doi.org/10.1016/j.bpj.2016.01…
https://doi.org/10.1002/bies.200800183
Paracatenula
https://doi.org/10.1371/journal.pone….
https://doi.org/10.1073/pnas.1105347108
https://doi.org/10.1073/pnas.1818995116
Hagfish
https://doi.org/10.1098/rspb.2010.2784
https://doi.org/10.1038/srep00131
https://animaldiversity.org/accounts/…

Images:

https://commons.wikimedia.org/wiki/Fi…
https://commons.wikimedia.org/wiki/Fi…
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https://en.wikipedia.org/wiki/File:Po…
https://oceanservice.noaa.gov/educati…
https://www.inaturalist.org/observati…
https://www.inaturalist.org/observati…
https://www.eurekalert.org/multimedia…
https://www.eurekalert.org/pub_releas…
https://commons.wikimedia.org/wiki/Fi…
https://www.eurekalert.org/multimedia…
https://vimeo.com/290672261
https://www.flickr.com/photos/dirtsai…
https://en.wikipedia.org/wiki/File:Ep…