We have even excavated a great bit of knowledge about the species that had gone extinct long before our kind became the dominant specie on the Earth. Credit for that goes to great paleontology and wonders of computer science.
However, there exists a kind of specie on our planet that we don't know much about and are highly unlikely to in the near future.
Deep sea creatures are very rarely sighted as their natural habitat is so far below the surface of water that accessing it is nearly impossible for us. The only time they're seen is when oil companies dig really deep or when researchers organize expensive diving trips for scientific studies.
Here are somedeep sea creatures that we're sure you've never seen or heard of. Note: some look like they’re right out of a horror movie.
The bigfin squids are a kind of cephalopods that have been spotted only a handful of times. Their giant tentacles make them look like aliens, but they're not. The last specimen of the bigfin squids was spotted in 2007 by Shell Oil Company.
Not many people know of giant isopods. They may look like turtles but they're actually distant relatives of shrimp and crabs.
The rather vicious looking humpback anglerfish is found at depths of 2,000 m (6,600 ft) underwater.
Giant Tube Worm
Scientists were unaware of the existence of giant tubeworms until they explored the Pacific Ocean floor. What they found is that these unique worms survive in the depths of water without light and at boiling temperatures. Also, they can be as long as eight feet.
Blobfish are found 3,900 ft below Tasmanian waters where the pressure is several dozen times greater than it is at the surface.