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Another day, another awesome tiger shark title. (Here's the first one if you missed it.)
Tiger sharks (Galeocerdo cuvier) are known as "garbage cans of the sea" because of their varied diet that includes real animals (such as fish and sea turtles) and … as well as garbage (such as wire mesh and rubber tires). And while tiger sharks are not new to eating seabirds, scientists have discovered that baby tiger sharks feed on birds normally found in their gardens like sparrows, pics and turtledoves!
Tiger sharks (Galeocerdo cuvier) are known as "garbage cans of the sea" because of their varied diet that includes real animals to … well, garbage.
Getty
Measuring up to 4.2 meters long and capable of weighing 1,400 pounds (635 kg), they are a migratory shark present in the tropical and temperate oceans of the world. Considered as almost under threat by the International Union for Conservation of Nature (IUCN), adult tiger sharks are renowned for feasting on one of the largest birds to fly in our skies: l & # 39; albatross. Off the coast of Hawaii, young Laysan albatrosses test their wings to learn how to fly, land often in the water and wait for the jaw of this predator. The French frigate benches are famous for this display, but it was previously unknown that young birds eat such an unusual bird type.
Marcus Drymon of Mississippi State University is the lead author of the new article in the journal Ecology; his team brought 105 tiger sharks aboard their boat into the Gulf of Mexico, pumped the stomach of these young sharks, and then released them into the wild. Kevin Feldheim, a researcher at the Chicago Field Museum and co-author of the new study, was one of the scientists who helped analyze the stomach contents of baby tiger sharks to see which shark birds ate. & nbsp; Of the 105 sharks studied, 41 had leftover birds in the stomach. "Tiger sharks will see an easy meal and grab it, but I was surprised to learn that sharks ate songbirds.& nbsp; – & nbsp;I supposed they'd be seabirds, "says Feldheim to Science Daily. Drymon reiterated: & nbsp; "None of them were seagulls, pelicans, cormorants or any type of seabird."
As the remains of the birds were often already a little digested, the scientists were not able to identify them immediately. Scientists sent the samples to the Museum's Pritzker Field Laboratory for Molecular Systematics and Evolution for DNA analysis to see if anything could be identified. By breaking down the vomitous remains into their basic molecular components, the scientists examined the results of the DNA sequence and then compared them to a bird DNA database to see exactly what which was in the stomachs of young sharks.
But where do the singing birds come from? They probably were not flying in the middle of the ocean … no? Not necessarily. The Drymon team was in the Gulf of Mexico, a unique semi-enclosed sea on the southeastern outskirts of the North American continent. From Yucatan to the Florida Peninsulas, it is bordered by five of the United States, Cuba and eastern Mexico. In fact, it is sometimes called "Sea of the Americas". It covers more than 600,000 miles2 (nearly 1.5 million km2), in some areas, reaches a depth of 12,000 feet (3,660 m) and receives freshwater from over 30 major river systems, creeks and streams. Above its waters, the Gulf of Mexico allows millions of songbirds to use its skies to migrate between the United States and Mexico. "In any case, the time the tiger shark eats the bird coincided with the peak of sighting of this species of bird off our coast," explained Drymon.
Each year, millions of landbirds migrate to or near the Gulf Coast of Mexico, as part of a hemispheric-scale phenomenon known as the name of the neo-tropical-neo-tropical bird migration system. & Nbsp;A new study published in Global Change Biology, which combines data from citizen scientists and weather radar stations, found that an average of 2.1 billion birds migrated to the Gulf Coast. & Nbsp;"Tiger sharks recover singing birds that have trouble flying over the ocean, and during the migration, they are already exhausted, then get tired or fall into the ocean during a storm," Feldheim adds. Yes, you read correctly. Sharks eat birds that fall from the sky. Not only is their depletion already an advantage for young tiger sharks, but also their environment. The terrestrial songbirds are probably not as strong in the ocean compared to the seabirds that live there. Scientifically speaking, "songbirds" are part of the Passériformes family, known for their boom and their complex mailboxes. This includes about 4,000 species – about half of the world's birds& nbsp; – & nbsp;up to 55 families.
Feldheim argues that the study shows the importance of making DNA databases available to scientists: "This shows us how much we can still learn about sharks in general and what DNA can tell us that observation can not. " It means companies like Otlet are particularly important for going forward. Founded in 2017, Otlet is a biological sharing database in which scientists can submit a record of their research samples that can be shared, research those available from other teams and request samples from each other. And how well Otlet is a global collaboration, this study was also conducted by several scientists from the Extension Department of Mississippi State University, the Sea Grant Mississippi-Alabama, the Field Museum, the Waterfowl Research Center. the Forbes-Bellrose biological station, the National Oceanic and Atmospheric Administration. National Marine Fisheries Service and the University of South Alabama.
In short, the song 'Baby Shark' has just released a new version, which discusses what they eat. & Nbsp; Doo doo doo doo doo doo doo.
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Another day, another awesome tiger shark title. (Here's the first one if you missed it.)
Tiger sharks (Galeocerdo cuvier) are known as "garbage cans of the sea" because of their varied diet that includes real animals (such as fish and sea turtles) and … as well as garbage (such as wire mesh and rubber tires). And while tiger sharks are not new to eating seabirds, scientists have discovered that baby tiger sharks feed on birds normally found in their gardens like sparrows, pics and turtledoves!
Tiger sharks (Galeocerdo cuvier) are known as "garbage cans of the sea" because of their varied diet that includes real animals to … well, garbage.
Getty
Measuring up to 4.2 meters long and capable of weighing 1,400 pounds (635 kg), they are a migratory shark present in the tropical and temperate oceans of the world. Considered as almost under threat by the International Union for Conservation of Nature (IUCN), adult tiger sharks are renowned for feasting on one of the largest birds to fly in our skies: l & # 39; albatross. Off the coast of Hawaii, young Laysan albatrosses test their wings to learn how to fly, land often in the water and wait for the jaw of this predator. The French frigate benches are famous for this display, but it was previously unknown that young birds eat such an unusual bird type.
Marcus Drymon of Mississippi State University is the lead author of the new article in the journal Ecology; his team brought 105 tiger sharks aboard their boat into the Gulf of Mexico, pumped the stomach of these young sharks, and then released them into the wild. Kevin Feldheim, a researcher at the Chicago Field Museum and co-author of the new study, was one of the scientists who helped analyze the stomach contents of baby tiger sharks to see which shark birds ate. Of the 105 sharks studied, 41 had leftover birds in their stomachs. "Tiger sharks will see an easy meal and grab it, but I was surprised to learn that sharks ate songbirds. – I supposed they'd be seabirds, "Feldheim told Science Daily.Reitered Drymon:" None of them were seagulls, pelicans, cormorants, nor any type of marine bird. "
As the remains of the birds were often already a little digested, the scientists were not able to identify them immediately. Scientists sent the samples to the Museum's Pritzker Field Laboratory for Molecular Systematics and Evolution for DNA analysis to see if anything could be identified. By breaking down the vomitous remains into their basic molecular components, the scientists examined the results of the DNA sequence and then compared them to a bird DNA database to see exactly what which was in the stomachs of young sharks.
But where do the singing birds come from? They probably were not flying in the middle of the ocean … no? Not necessarily. The Drymon team was in the Gulf of Mexico, a unique semi-enclosed sea on the southeastern outskirts of the North American continent. From Yucatan to the Florida Peninsulas, it is bordered by five of the United States, Cuba and eastern Mexico. In fact, it is sometimes called "Sea of the Americas". It covers more than 600,000 miles2 (nearly 1.5 million km2), in some areas, reaches 3,660 m in depth and receives fresh water from more than 30 major river systems, streams and streams. Above its waters, the Gulf of Mexico allows millions of songbirds to use its skies to migrate between the United States and Mexico. "In any case, the time the tiger shark eats the bird coincided with the peak of sighting for that bird species off our shores," said Drymon.
Each year, millions of landbirds migrate to or near the Gulf Coast of Mexico, as part of a hemispheric-scale phenomenon called the system. of nektic-neo-tropical bird migration. A new study published in the journal Global Change Biology combining data from citizen scientists and weather radar stations revealed that an average of 2.1 billion birds migrate to the Gulf Coast of Mexico. "Tiger sharks feed on songbirds that are struggling to fly over the ocean, they are already exhausted during migration, and then they get tired or fall into the ocean at some point. storm, "adds Feldheim. Yes, you read correctly. Sharks eat birds that fall from the sky. Not only is their depletion already an advantage for young tiger sharks, but also their environment. The terrestrial songbirds are probably not as strong in the ocean compared to the seabirds that live there. Scientifically speaking, "songbirds" are part of the Passériformes family, known for their boom and their complex mailboxes. This includes about 4,000 species – about half of the world's birds – up to 55 families.
Feldheim says the study shows the importance of making DNA databases available to scientists: "This shows us how much we can learn about sharks in general and what DNA can tell us that observation can not. " This means that companies like Otlet are especially important to go forward. Founded in 2017, Otlet is a biological sharing database in which scientists can submit a record of their research samples that can be shared, research those available from other teams and request samples from each other. And how well Otlet is a global collaboration, this study was also conducted by several scientists from the Extension Department of Mississippi State University, the Sea Grant Mississippi-Alabama, the Field Museum, the Waterfowl Research Center. the Forbes-Bellrose biological station, the National Oceanic and Atmospheric Administration. National Marine Fisheries Service and the University of South Alabama.
In short, the song 'Baby Shark' has just received a new version, which deals with what they eat. Doo doo doo doo doo doo doo.