Ultra-sensitive sharks...

[roamingmer]

One link here for the Marine Guys - ultra-sensitive brownbanded bamboo shark embryos can detect the presence of electric fields and slow their breathing / freezing whilst still in embronic stage. Cool eh!
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0052551

[SweeteSiren]

Very cool. The part about response times sounds like the embryos are learning and remembering even before their brains are fully developed. Thanks for sharing!