I think it is very very unprobable that any giant squid ever killed a sperm whale. Even newborn sperm whales have a weight of about 1t, as large or even larger than any archi. But this small ones have no contact with big squids, because they don´t dive. If they are big enough to dive, they are also many times heavier than even the larges Mesonychoteuthis, and no squid could drown them. Even small female sperm whales are about 15 tons in weight, that means about 30 times the weight of a very large Archi, it´s comparable to a fight between a mouse and cat.
Even very large and aggressive species like Mesonychoteuthis had no chance even against a small sperm whale. They are much smaller, and furthermore they have no true weapons against a giant like a sperm whale. Although the skin of sperm whales is very thin, they have thick layers of blubber which would defend them from serious damage from beaks and hooks. Even if a large squid could manage to bite a whale in its eyes, it would have little effect, because such a wound wouldn´t be deadly for the whale, and sperm whales needs no eyes (as several very healthy but also very blind specimens have shown) for orientation. Strangulation seems also unprobably, because sperm whales have most oxygen in their blood and inner organs, and not in their lungs, furthermore their bodies are built to withstand enormous pressure, so a squid had really no possibility to kill a squid.
But I still ask me which ass tells stories about squids which kill right whales for sport...
Even very large and aggressive species like Mesonychoteuthis had no chance even against a small sperm whale. They are much smaller, and furthermore they have no true weapons against a giant like a sperm whale. Although the skin of sperm whales is very thin, they have thick layers of blubber which would defend them from serious damage from beaks and hooks. Even if a large squid could manage to bite a whale in its eyes, it would have little effect, because such a wound wouldn´t be deadly for the whale, and sperm whales needs no eyes (as several very healthy but also very blind specimens have shown) for orientation. Strangulation seems also unprobably, because sperm whales have most oxygen in their blood and inner organs, and not in their lungs, furthermore their bodies are built to withstand enormous pressure, so a squid had really no possibility to kill a squid.
But I still ask me which ass tells stories about squids which kill right whales for sport...