Colossal squid are considered to be the world’s largest known invertebrates. When fully grown, they can reach up to 23-feet in length. For perspective, that is nearly the size of a small fire truck.

Although its the largest invertebrate species in the world, scientists have never glimpsed the colossal squid (Mesonychoteuthis hamiltoni) in its natural habitat. However, a non-profit ocean research ...

It may be the biggest invertebrate on the planet, but we don’t know much about it. The first time scientists learned of the colossal squid was in 1925. Remains of the massive sea creature had been ...

The colossal squid, the world’s largest squid species, was caught on video for the first time swimming in its natural habitat, according to a California ocean research organization. This squid, as its ...

A colossal squid — the world's largest squid species — was filmed and photographed in its natural habitat for the first time since scientists discovered it about a century ago. Crew members on board a ...

One hundred years after its discovery, one of the largest, most elusive mollusks has been filmed alive in its natural environment for the first time. On a recent expedition near the Antarctic South ...

(AP) - A colossal squid has been caught on camera for the first time in the deep sea by an international team of researchers steering a remotely operated submersible. The sighting was announced ...

Almost a century after the colossal squid was first discovered, a juvenile was spotted and filmed in its natural habitat last month. Crew members on board a research vessel in the South Atlantic Ocean ...

Humans spend nearly their entire lives on land, but the Earth we call home is really a water world. With 71 percent of the Earth’s surface covered by water, this expansive ecosystem has been difficult ...

A colossal squid has been caught on camera for the first time in the deep sea by an international team of researchers steering a remotely operated submersible. Trump’s EPA revokes scientific finding ...