'(Cheryl of the Clue Crew at Sea World in San Diego)  A muscular flap covers this, & is closed to provide a watertight seal when the dolphin is relaxed'
blowhole
OW: A muscular flap covers this, & is closed to provide a watertight seal when the dolphin is relaxed
A muscular flap covers this, & is closed to provide a watertight seal when the dolphin is relaxed
A muscular flap covers this, & is closed to provide a watertight seal when the dolphin is relaxed
"OW"
blowhole
"OW"