KALININGRAD, November 28. /TASS/. A reef shark living at a zoo in Kaliningrad, Russia's exclave on the Baltic Sea, has suffered a stress disorder after visitors knocked on the glass of its aquarium, a zoo spokesperson said on Friday.
Visitors who took a special interest in the 1.5-meter shark banged on the glass tank making it rush around the enclosure, the spokesperson said.
She said that the shark got its nose and eyes hurt and is being treated with antiseptics and sedatives. Zookeepers decided to close the aquarium until the shark's recovery.
Reef sharks, native to the Indian and Pacific Oceans, can attain a length of up to two metres and seldom pose danger to humans.