CAMDEN, N.J., (CBS) — The Adventure Aquarium in Camden welcomed a pair of six-foot female Orinoco Crocodiles Thursday night.

Named after the Orinoco River in their native South America, the aquarium says Orinocos are a critically endangered species known for their long, sharp snouts and captivating pale green eyes.

The aquarium says the species is so close to extinction, the International Union for Conservation of Nature (IUCN) has estimated their wild population at only 250-1,500.

Guests will be able to see the Orinoco Crocodiles starting Friday, on exhibit for the first time in the Northeast.