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Rays

Rays

The rays can measure up to 2 meters (79 inches), are marine cartilaginous fish and belong to the group that also contains sharks. They have a diamond-shaped body and a pointed tail that, in some species, has a thorn with poison at the tip.

They like to rest in sandy bottoms, where they sometimes hide and look for food, digging up small clams and oysters, their favorite snack, through a very effective strategy of alternating blowing and sucking.

They are usually harmless, but when they feel threatened, they can use their sharp thorns at the tip of their tails to cause lethal damage.

There is only one family of freshwater rays, the family Potamotrygonidae.

Gill slits are under the head - this is the main feature that distinguishes batoid fish from sharks.

There are oviparous species (reproducing by eggs that females expel) and viviparous species (eggs are incubated inside the mother's organism), in which case the chicks are born perfectly developed.

There is only one family of freshwater rays, the family Potamotrygonidae.

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There is only one family of freshwater rays, the family Potamotrygonidae.

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Gill slits are under the head - this is the main feature that distinguishes batoid fish from sharks.

Show previous slide
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Gill slits are under the head - this is the main feature that distinguishes batoid fish from sharks.

Show previous slide
Show next slide

There are oviparous species (reproducing by eggs that females expel) and viviparous species (eggs are incubated inside the mother's organism), in which case the chicks are born perfectly developed.

Show previous slide
Show next slide

There are oviparous species (reproducing by eggs that females expel) and viviparous species (eggs are incubated inside the mother's organism), in which case the chicks are born perfectly developed.

Show previous slide
Show next slide