Drone surveys offer early warnings on whale health and survival
via news.mongabay.com
Short excerpt below. Read at the original source.
How are whale populations faring? Traditionally, getting an answer to that question involved counting whales by taking their photos and identifying them from their natural markings. However, a caveat persisted. Whales live a long time and reproduce very slowly. That means it often takes “a long time to learn about changes in the population as […]