Rayna Bell, a herpetology expert and curator at the California Academy of Sciences, told Snopes it's true that some frogs have heart-shaped pupils ... "Red-Eyed Tree Frog." San Francisco Zoo ...

Some species of frogs have heart-shaped pupils. Rating: The eyes of frogs and toads have been dubbed one of their "most striking morphological characteristics." Take the red-eyed treefrog, so-named ...

Their “large” eyes are reddish-brown with diamond-shaped pupils, and their “large” tongues are “heart shaped.” Photos show the various brown shades of the new species. These tree frogs ...

A team of researchers set out to study the hourglass tree frog, a “small ... have “short” snouts, “heart-shaped” tongues and “large, prominent” eyes. Their arms are “short ...

Take a close look at a house cat's eyes and you'll see pupils that look like vertical slits. But a tiger has round pupils — like humans do. And the eyes of other animals, like goats and horses ...

A Nyctimantis diadorim, or Brazilian backland casque-headed tree frog, perched on ... reddish-brown with diamond-shaped pupils, and their “large” tongues are “heart shaped.” ...