they have a similar bone structure and they all have a common ancestor.
A human hand, a dolphin's flipper, and a bat's wing all have 5 long jointed bones that look very similar to each other.
have similar kinds of bones
Dolphins often seem to wave a flipper. The seal's front left flipper was temporarily snagged in a fisherman's net.
They both contain skeletal bones.
Dolphins mostly use their back flipper but sometimes use their front fins.
ya! a flipper can be worn with braces! i was in the same situation and got braces yesterday!
Neither one. Both homologous and analogous structures refer to similar structures. But a cat's front leg and a whale's front flipper have little in common. Homologous structures come from little evolutionary separation, and analogous structures come from convergent evolution. But the differences between a cat's front legs and a whale's front flipper result from divergent evolution. The common ancestor of mammals (cynodonts) has split into various groups with widely differing characteristics. One such group includes cats, and another includes whales. These two groups are not very related to each other, thus having no homologous structures, and have been put in very different environments, thus having no analogous structures.
Yes, penguins can fly, but they're sneaky, and don't fly in front of us, as they don't get payed for it, they are in fact very intelligent, rivalling even dolphins, mice, seals, and that bunch of idiots we humans call humans.
yes i think
side of head.
about 2cm
dolphins use their melons to produce sound waves.
by appearing in front of them and confronting them.
the women will let two come to her at the same time