Question

How are the whales and fish similar to each other?

Answer 1

Hint: Fish are gill-bearing aquatic creatures with no digits on their limbs. They are related to the tunicates and together make up the olfactores. Extant hagfish, lampreys, cartilaginous and bony fish, as well as many extinct related taxa, are included in this description. Around 99 percent of extant fish species are ray-finned fish from the Actinopterygii class, with over 95 percent belonging to the teleost subgroup.

Complete answer:
Both fish and whales are vertebrates, meaning they have backbones. They can also be found in watery settings. Whales, with the exception of a few species, are solely found in the ocean. Fish, on the other hand, can live in both fresh and saltwater. Whales are among the world's biggest creatures, while certain fish are among the tiniest. Despite the fact that whales and fish are not mammals, they are comparable in certain respects. Both have fins and a tail that aid in swimming and keeping them upright in the water. Whales use their horizontal tail, which flaps up and down to push them through the water, to propel their bodies through the water. Fish, on the other hand, have vertical, side-to-side moving tails.
Whales are a kind of marine animal. They're warm-blooded creatures who breathe via their lungs. Fish, on the other hand, are cold-blooded creatures with gills for breathing. Whales and fish are similar in many respects, despite their differences.
Both creatures are found in water.
They're both vertebrates.
Fins are used by whales and fish to swim.
Both have a skeleton within them.

Note:
Whales are a varied group of completely aquatic placental marine animals with a vast distribution. They are an unofficial suborder of the Cetacea, generally omitting dolphins and porpoises. The order Cetartiodactyla, which includes whales, dolphins, and porpoises, is made up of even-toed ungulates. Hippopotamuses are their closest surviving cousins, having split around 40 million years ago.