The adjective could be used but it hardly helps in describing the fin - big in comparison to to WHAT.
no
No, they use their tails.
Fins. no it has flippers because fish have fins and a whales are not fish they're mammals
they use there fins to kill
Dolphins mostly use their back flipper but sometimes use their front fins.
they use their tails to help them swin but they also use their fins to help them swim
They use their fins and tail to push through the water.
dolphins are aquatic mammals like seals, and sea lions. They have fins & a strong tail which they use to swim in water.
Animals that use fins to move are whales, dolphins, sharks, and various types of fish. A fin will generate thrust and propel the animal through the water.
Dolphins are free swimming and don't use any shelter.
They use their Back tail flippers, moving it up and down. I think they also use their fins/flippers.. I dont know
If you think that the object that you describe si big then you can use