The findings not only make it clear that all giant squid around the world are the same species, but they also hint that the animals came close to extinction at some point in the not too distant past.
“What could possibly have caused giant squid to vanish on such a global scale? And what changed that allowed them to spread again?”
“… changes in ocean conditions somehow altering the nutrient-rich deep waters that these animals need?”
“It would be very interesting to compare patterns and timings of this low diversity and see if they correspond to some historic event,” says Morin.
Learn more here-
http://www.nature.com/news/dna-reveals-giant-squid-had-brush-with-death-1.12641
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Yours sincerely,
Dr Richmond Loh
DipProjMgt, BSc, BVMS, MPhil (Pathology) Murdoch, MANZCVS (Aquatics& Pathobiology).
The Fish Vet, Perth, Western Australia.
Veterinary Medicine for fish.
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