cybercore
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Study: Why Seahorses Look Like Horses
"A horse is a horse, of course, of course, and no one can talk to a horse, of course," so why does a seahorse look so much like, well, a horse?
With the theme song from the 1960s sitcom "Mr. Ed" fading in the distance, the question of how seahorses evolved with a very equine-like head and neck is at the heart of a new study published in the journal Nature Communications.
Scientists now suggest that the curves of a seahorse body -- ranging from 0.6 to 14 inches -- help it to be a better hunter.
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A longsnout seahorse moves gracefully through coral in its tank at the Shedd Aquarium in Chicago. Scientists are studying why the seahorse looks just like a horse.
"Seahorses evolved from ancestral, pipefish-like species, which have a straight body," the study says.
"Here, we use a biomechanical analysis and show that the seahorse's peculiar head, neck and trunk posture allow for the capture of small shrimps at larger distances from the eyes, compared with pipefish," the study adds.
While a pipefish and seahorses share the same fish subfamily, Syngnathinae, pipefish are straight-bodied, like little snakes. Both fish rely on a diet of small shrimp and tiny fish, which they eat after sucking them into their snouts.
High-speed video recordings reveal that seahorses utilize the curve in their necks to more quickly grab and eat their prey, the BBC reports.
"They rotate their heads upward to bring their mouth close to the prey," said Sam Van Wassenbergh at the University of Antwerp in Belgium.
Wassenbergh theorizes that certain pipefish evolved into a "sit and wait feeder," developing into S-shaped seahorses to more easily capture food.
"They grasp with their tail, to attach to sea grass and wait for food to pass by within striking distance," he said.
Do you suppose seahorses relax by competing in seahorse races?
"A horse is a horse, of course, of course, and no one can talk to a horse, of course," so why does a seahorse look so much like, well, a horse?
With the theme song from the 1960s sitcom "Mr. Ed" fading in the distance, the question of how seahorses evolved with a very equine-like head and neck is at the heart of a new study published in the journal Nature Communications.
Scientists now suggest that the curves of a seahorse body -- ranging from 0.6 to 14 inches -- help it to be a better hunter.
Link Removed - Invalid URL
A longsnout seahorse moves gracefully through coral in its tank at the Shedd Aquarium in Chicago. Scientists are studying why the seahorse looks just like a horse.
"Seahorses evolved from ancestral, pipefish-like species, which have a straight body," the study says.
"Here, we use a biomechanical analysis and show that the seahorse's peculiar head, neck and trunk posture allow for the capture of small shrimps at larger distances from the eyes, compared with pipefish," the study adds.
While a pipefish and seahorses share the same fish subfamily, Syngnathinae, pipefish are straight-bodied, like little snakes. Both fish rely on a diet of small shrimp and tiny fish, which they eat after sucking them into their snouts.
High-speed video recordings reveal that seahorses utilize the curve in their necks to more quickly grab and eat their prey, the BBC reports.
"They rotate their heads upward to bring their mouth close to the prey," said Sam Van Wassenbergh at the University of Antwerp in Belgium.
Wassenbergh theorizes that certain pipefish evolved into a "sit and wait feeder," developing into S-shaped seahorses to more easily capture food.
"They grasp with their tail, to attach to sea grass and wait for food to pass by within striking distance," he said.
Do you suppose seahorses relax by competing in seahorse races?
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Study: Why Seahorses Look Like Horses In a fascinating exploration of evolution, a recent study published in Nature Communications delves into the morphological similarities between seahorses and horses. The question springs to mind: why do these marine creatures have such equine-like features? The study leads us into the biomechanics of seahorses, revealing that these creatures have evolved with a distinctly curved body, ranging in size from 0.6 to 14 inches. Researchers propose that these unique body curves enhance the seahorse's ability to hunt, particularly small shrimp—its primary food source. Drawing comparisons to their ancestors, the pipefish—straight-bodied relatives of the seahorse—the study highlights how the adaptations in posture and body form have significantly impacted hunting techniques. According to Sam Van Wassenbergh, a researcher at the University of Antwerp, seahorses can extend their heads upward due to their curved necks, positioning their mouths closer to their prey for a quicker grasp. High-speed video analysis supports their findings, demonstrating that the S-shaped bodies of seahorses allow for more effective "sit and wait" feeding strategies, where they can latch onto seagrass and remain motionless until prey passes within reach. In a lighter vein, one could ponder whether these charming creatures partake in competitive races, echoing the playful notion of “seahorse races.” It’s a whimsical thought that brings humor to the serious scientific inquiry into their remarkable evolution. Discussion Point: What are your thoughts on the adaptations of seahorses compared to other marine species? Have you observed any interesting marine life behavior yourself? Let's dive into the discussion!