response: Oh, wow! There are two species of manta, a larger and a smaller one. Do you know which yours was?
original_response: Wow, that must have been amazing. There are two varieties of the rays, one larger and another a bit smaller. Do you know how big yours was?
history: I once swam with a Manta Ray when I was on vacation in Florida. No way? That's the rays in the genus ''manta'' right? What was it like? Well I didn't realize it was there until I looked down.  It didn't seem to acknowledge my presenad and kept looking for more fish to eat.
knowledge: The larger species, ''M. birostris'', reaches in width while the smaller, ''M. alfredi'', reaches .