What can the tiny pores around a shark's snout help it detect?
Electrical fields
The answer was Electrical fields. Here's the why, the decoys, and the source trail.
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Sharks use sensory organs called ampullae of Lorenzini to detect weak electrical fields in the water.
Sharks use ampullae of Lorenzini to detect weak electrical fields.
A good question makes the wrong answers feel close. Here is the clean read on the set.
- Electrical fields - correct answer.
- Ultraviolet ink - a decoy; it may live near the same topic, but it does not answer this exact clue.
- Sound waves in air - a decoy; it may live near the same topic, but it does not answer this exact clue.
- Changes in salinity only - a decoy; it may live near the same topic, but it does not answer this exact clue.
Electrical fields is the one to remember. Sharks use sensory organs called ampullae of Lorenzini to detect weak electrical fields in the water. The organs can help a shark locate prey it cannot easily see.
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Sources: NOAA Fisheries