In a now viral Facebook post, video captured an extremely rare sighting of an endangered whale species along Alabama’s Gulf Coast.

Capt. Bobby Kelly, Owner of Miss Brianna’s Fishing Charter, captured the moments he saw two right whales while boating in Perdido Pass on Sunday.

During a Facebook live on Monday, Kelly talked about how great the experience was seeing the massive creatures.

“Totally cool seeing them yesterday,” Kelly said. “Just in awe of seeing an animal that big that god created for us to see.”

Kelly said he was contacted by biologists after posting the video and it started gaining increased attention.

Kelly said he was told by Tom Pitchford, a biologist with Florida Fish and Wildlife Commission, that the names of the two whales were Kurlew and Koala.

Right whale sightings are extremely rare because there are only about 370 left in the world. Additionally, Kurlew and Koala are North Atlantic right whales, meaning they do not frequent the gulf often,

However, the two female whales were likely in the area looking for prospective places to give birth to calves.

The species was nearly wiped out due to being a primary target of the whaling industry during the 1800s. The whale’s population has struggled to recover since and continues to face issues caused by climate change and vessel strikes.

According to the National Oceanic and Atmospheric Administration, climate change altered the whale’s migration and feeding patterns causing the animal to spend more time in locations with fewer protections against water vessels.

Guidance on NOAA’s website states provides information to help boaters avoid striking the mammals including that it is unlawful for a vessel to be within 500 feet of right whales.

“Any vessel within 500 yards of a right whale must depart immediately at a safe, slow speed,” the guidance states. “These restrictions are in place to prevent accidental collisions between right whales and boats as well as to protect the whales from disturbance.”