Facts? Read the article? We are FReepers we don't need no facts and we certainly don't have to read the whole article before commenting!
A lot of assumption in the replies in this thread. Read the article and watch the video.
1. The shark moved extremely rapidly from near surface depth to over 2000 feet in little time.
2. The temperature registered on the tag went from 46 to 78 degrees and held that temperature constantly.
Sharks and squid are ectothermic. That means cold blooded. However, some sharks create heat through muscle exertion but it is never constant. It varies by several degrees based upon outside environment and exertion.
The speed of the shark decent is curious and troubling. Some whales can dive to the depths described but their body temperatures run about 100 degrees.
I don’t think it was a shark or a whale. It definitely wasn’t a squid. There is also data that is not being shared for some reason. How long was the elevated temperature there for? What depth did the elevated temps end at?
While it would be awesome for it to be a Meg, I don’t think it is but it’s also not another GWS. The evidence so far doesn’t support any known animal.
I was thinking sperm whale or squid rather than killer whales or another shark. However the temp deltas I think mean it can’t be a squid. Though I could see another great white as a possibility, I’ll stick with the sperm whale due to the descent rate and likelyhood of being near the surface, the temp difference compared to internal could be due to the ingested water within the beast. Be curious to see if they climbed slowly despite the pressure drop and if it dropped after being expelled.