The Nautilus Expedition has set out and is currently investigating the effects of natural gas seeps that occur in the Gulf of Mexico. The expedition is using ROVs to gather samples and data from the water column. During one of the vehicle’s dives, the ROV encountered a sperm whale (Physeter macrocephalus) at 598m (1,962 ft). The animal was curious, circling the vehicle and its TMS a few times before moving off.

The Nautilus Expedition is broadcasting live throughout its course.