This school of Atlantic horse mackerel is forming a bait ball. When surrounded by predators, such as the barracuda and bluefish seen here, the school will gather close together to expose the least number of individual fish. In the open ocean, without hiding places among kelp, coral, or coastal rocks, the bait ball will protect most of the smaller fish. Is this where the idea of ‘safety in numbers’ originates?
Mackerel forming a bait ball to avoid predators
Today in History
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The Canary Islands, Spain
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A narrow passage
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Seven Magic Mountains art installation, Jean Dry Lake, Nevada
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World Art Day
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Surströmming Day
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Sandhill cranes, Bosque del Apache National Wildlife Refuge
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Infrared Jupiter, erupting Io
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Perfect timing
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A cliffside harbor in Sardinia
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Celebrating 30 years of eye-opening images
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What s going on in this sky?
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And you thought moths were boring
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Happy Arbor Day!
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Back on the rise
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Porcupine
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The Easter Bunny’s story
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Climb a tree for wild animals and plants
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River otters at Acadia National Park, Maine
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Take the plunge into 2021
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National Llama Day
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Boundary Waters Canoe Area Wilderness
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Big wheels on a big mountain
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Digging the birds
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Honoring the fallen
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Can you see the family resemblance?
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Satla marshland in Bangladesh
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St. James Tidal Pool, Cape Town, South Africa
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AAPI Heritage Month & Lei Day
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Winterpret on ice
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Golden jellyfish in Jellyfish Lake, Palau