Dolphins do have a strong tail with strong kick. That is showcased in many aquariums when they perform tail-walking above water or jumps.
dolphins are aquatic mammals like seals, and sea lions. They have fins & a strong tail which they use to swim in water.
a tail
dolphins are actually not that aggressive but they are strong enough to kill a human
yes
moving their tail
Their tail and teeth.
Dolphins paddle by swishing their tail up and down or side to side.
dolphins swims so fast not because of their skin structure but because of large force exerted by their tail . dolphin can exert a force of 400lb by their tail as compared to olympic swimmers (produce only 60-70lb of force).
silk as the cover
Yes. Most dolphins can't survive without a tail because they need a tail to swim, they would most likely drown without a tail, but that doesn't mean it's completely hopeless. If Winter the dolphin can survive without a tail, another dolphin can survive too, as long as they put their fighting spirit to use for survival
Up and down. I've also noticed that mammals, such as whales and dolphins, beat their tail up and down, while fish, like sharks, beat their tail side to side. Hope this helps!