3 ms·
True, but IIRC it's more of eliminating competition or maybe even a blood sport; sharks aren't major part of their diet[1]. Would make sense given that heavy me
by dexen 8y ago
True, but IIRC it's more of eliminating competition or maybe even a blood sport; sharks aren't major part of their diet[1]. Would make sense given that heavy metals and other toxins bio-accumulate up the food chain.
I posit the high heavy metal levels is a defense mechanism for sharks: a slow acting poison.
[1] IIRC again, orcas will leave a shark with the tail cut to just die of asphyxiation, somebody please correct me on this one
- enchiridion 8y agoI believe the article posted yesterday pointed out that Orcas will eat shark liver, which is about 25% of a shark by weight and also very calorie dense.
- nradov 8y agoGreat White Sharks could present a danger to baby orcas, so adult orcas seem to sometimes kill the sharks as a protective measure.