Conversation so far:
What did James Cook do in Newfoundland?
James Cook's surveying ability was also put to use in mapping the jagged coast of Newfoundland in the 1760s, aboard HMS Grenville.
Who sent James Cook to Newfoundland?
General Wolfe sent James Cook to survey the land for a military strategy.
Did James Cook find anything interesting in Newfoundland?
James Cook surveyed the northwest stretch in 1763 and 1764, the south coast between the Burin Peninsula and Cape Ray in 1765 and 1766, and the west coast in 1767.
What else did James Cook find besides the northwest stretch, the south coast, and the west coast of Newfoundland?
James Cook's five seasons in Newfoundland produced the first large-scale and accurate maps of the island's coasts and were the first scientific, large scale, hydrographic surveys.
Do we still use James Cook's maps?
James Cook's maps were used into the 20th century, with copies being referenced by those sailing Newfoundland's waters for 200 years, but are not used anymore.

Question: Did he learn any other interesting things?
Self-contained rewrite: Did James Cook learn any other interesting things besides surveying Newfoundland?