One of the most elusive and rarest types of whales has been captured on camera by some students on a field trip. The True's beaked whales are very hard to find but for the first time ever, biologist and researchers have released a video footage of it swimming underwater.

After many years of waiting and sightseeing, the True's beaked whales have finally been caught on video, Mail Online has reported. The footage is of three True's beaked whales swimming in the coastal water of Azores. The video was from science students who were on a field trip in Azores. True´s beaked whales are almost always in deep water in the ocean. They are 92 per cent in the water.

Only a total of seven times that True's beaked whales were seen live. All of them were in Macaronesia, a region in the North Atlantic Ocean. A marine biologist with the University of St. Andrews in Scotland and the University of La Laguna in the Canary Islands, Natacha Aguilar de Soto, has been studying beaked whales for 15 years, Washington Post stated. She hopelessly spent time in the sea for months just to see a rare sight of True's beaked whales. Sadly, she did not see any.

Beaked whales are a family of 22 cetacean species. There are known by their dolphin-like noses and missile-shaped bodies. They are one of the most elusive animals on Earth. True's beaked whales dive deeper and longer than any other marine mammal.

 "Imagine, these are animals the size of elephants that we just can't find. They're a mystery," De Soto said. When she saw the video that was given to her by a colleague, she was surprised. She would have never thought she would see a beaked whale in her entire life. "I thought, 'My god, these are True's beaked whales," she stated.

With this new footage, scientists have identified that there are different color of beaked whales. Some of them have white color not like what marine biologists thought at first, gray.