Question

which is the longest animal in the world​

Answer 1

Answer:

cobra is the longest animal in the world but there are many species of cobra are shorter

Answer 2

It's a stinging, string-like animal known as a siphonophore.
Logan Mock-Bunting, a spokesperson for the Schmidt Ocean Institute, said: The entire creature is much, much longer. The crew is estimating it to be more than 120 meters in total length—possibly over 390 feet long.