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Ravens Use Memory for Scavenging
13 Mar
Summary
- Ravens create mental maps of wolf kill locations.
- Birds travel up to 100 miles daily for expected prey.
- Ravens gain more from wolf hunts than wolves do.
Ravens exhibit remarkable cognitive abilities, utilizing navigation and spatial memory to scavenge with surprising sophistication. A recent study equipped 69 ravens with GPS trackers, revealing they do more than just follow wolves.
Researchers found that ravens revisit locations where wolves frequently hunt, indicating they form mental maps of potential food sources. Some birds journey up to 155 kilometers (100 miles) daily, relying on memory to find prey like deer, elk, or bison.
While short-range cues like wolf howls are still used, the study highlights the birds' reliance on memory to locate kills. Wolf kills often occur in flatter terrain or open valleys, factors ravens may remember or detect through indirect signs.
Ultimately, the relationship benefits ravens more, as they can consume a substantial amount of meat quickly, sometimes leaving wolves with a "raw deal." This research underscores the complex and underestimated intelligence of ravens in the wild.
