Where does “蟹食海豹” come from?

蟹食海豹 (Japanese) comes from Japanese 海豹, from Japanese 等, from Japanese なんど, from Japanese 何と, from Japanese 何 — What?, Huh?; what; that thing.

蟹食海豹 (Japanese): a crabeater seal

Definitions

蟹食海豹 traces back through 3 separate lines of ancestry.

Step	Language	Word	Meaning
1	Japanese	海豹	a seal, specifically the earless seal or true...
2	Japanese	等	et cetera; rank, class, order; et cetera, that...
3	Japanese	なんど	何度 the number of times, how often; 等 et cetera;...
4	Japanese	何と	etc., and so forth, and such like
5	Japanese	何	What?, Huh?; what; that thing

Step	Language	Word	Meaning
1	Japanese	食い	eating, grubbing up; bite
2	Japanese	鯎	the Japanese dace, also known as the big-scaled...
3	Japanese	鵜	a cormorant

Step	Language	Word	Meaning
1	Japanese	蟹	a crab
2	Japanese	殻	shell, crust, chaff; husk, hull; cinders, ashes