Scientists proved that the sea still holds some big mysteries after capturing footage of the colossal squid — the largest invertebrate on the planet — in its habitat for the first time.

In a video shared by The Associated Press, squid researcher from the Auckland University of Technology in New Zealand, Dr. Kat Bolstad, states that Schmidt Ocean Institute captured the first live footage of a small colossal squid during a deep sea discovery expedition around the South Sandwich Islands.