While touring the animals, a visitor accidently dropped his cell phone in the sea otter pond. Due to its love of hard shelled prey, the sea otter really employed the mobile as a shell. The owner of the mobile phone is going to break a heart just by making a loud knock on the stone!
While swimming, the sea otter picked up a cell phone from the water. Then, with both hands still holding the phone, it urgently slapped it against the stone, knocking more than a dozen times in succession, creating a loud crash sound.
