To avoid being heard by sharks, marine iguanas can stop their own hearts for up to 45 minutes.

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image showing To avoid being heard by sharks, marine iguanas can stop their own hearts for up to 45 minutes.

hobbsja on March 26th, 2021 at 22:36 UTC »

To avoid sharks, I keep my ass out of the ocean.

86max86 on March 26th, 2021 at 22:37 UTC »

It would stop my heart permanently if I was swimming around and saw one.

Jolkien-RR-Tolkien on March 26th, 2021 at 23:00 UTC »

Wait, so sharks can hear heartbeats?