> The males may be seeking added nutrients in high-calorie blubber to boost their mating value during the breeding season, a time when bulls usually fast, Langley speculates.
Wonder if the male killer is of the same bloodline? Lions often opportunistically kill offspring of other males to reduce competition for their own offspring and to bring females into estrous.
EDIT: FWIW I asked claude and it says
> Gray seals have a promiscuous, harem-based mating system, but paternity is diffuse and males don't guard specific females long-term the way lions do. A bull has little way of "knowing" which pups are his rivals' offspring vs. his own.
So seems unlikely (according to claude).