The "roundest" animal would most likely be some type of small marine invertebrate. If you mean "roundest" as in spherical, the roundest would probably be the Giant Ostracod, a tiny deep-sea crustacean and is completely sphere-shaped. If you mean round in terms of circular, you could include any creature with radial symmetry, such as many echinoderms (like sand dollars, sea urchins, etc.) and many cnidarians (jellyfish!). Pillbugs and hedgehogs can curl up into completely round, protective spheres, and pufferfish can inflate into a spherical shape.
Panda
the largest is the blue whale, ironicaly it eats one of the smallest plankton, but the smallest is the microscopic round worm.
no
The biggest animal in the world is the blue whale, which can reach lengths of over 100 feet and weigh up to 200 tons. They are found in oceans around the world.
SW - This can't be true! What about all the other whales? The second heaviest animal in the world is an African elephant, The heaviest being a Blue whale at 190tonns
The roundest object in the world is a silicon sphere created by the International Avogadro Project. It is considered the roundest object because its diameter is consistent to within a few atoms, making it incredibly smooth and symmetrical.
comparative - rounder superlative - roundest
Yes, roundest is an adjective. However, it may not always be appropriate, depending on the context.
The roundest object in the universe is the electron. It is considered the roundest because it has a perfectly spherical shape, with no detectable deviation from being perfectly round. This makes it the most symmetrical and uniform object known to science.
20
1300
8910
5
It is 0.188
9000
5000
It is 2,300