Saturday, March 12, 2011

sharks follow search #pattern "mental #map" to navigate seas

Some sharks follow `mental map` to navigate seas

Re-analysing tracking data from tagged sharks, ecologists found that while some species such as blacktip reef sharks swim in a pattern known as a "random walk", others such as tiger sharks can at times hunt for prey or mates by using "directed walks", accurately navigating long distances across open ocean, often at night.

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