Seen a strange sea animal seen in Philippines. It no usual a Horseshoe crab

Seen a strange sea animal seen in Philippines. It no usual a Horseshoe crab

Tachypleus Tridentatus, Chinese horseshoe crab. The big one is female and the small one is male, the male grabs the tail of the female during the mating season to be the first on spot when she lays eggs. This is a super video, really good to see them in the water.