Dolphins speak like Kim Kardashian?

Dolphins talk like Kim Kardashian when they are hunting fish.

New research has found that the aquatic mamals use the 'vocal fry' register as the low sounds help them find, track and catch their prey.

In humans, the speech technique produces the lowest sounds by elongating syllables and the register is also used by singer Katy Perry and actress Scarlett Johansson.

The drawl is common in California and has become known around the world due to the US cultural influences.

Professor Coen Elemans, of the University of Southern Denmark, said: "Vocal fry is a normal voice register that is often used in American English. Kim Kardashian, Katy Perry and Scarlett Johansson are well-known people using this register."