freshwater species of the week

Salmon Trucked to Ocean? Freshwater Species of the Week

The annual fall run of young salmon from their inland birthplaces in rivers to the sea is one of Nature’s dramatic migrations. But this year, a number of chinook salmon may make that journey by truck. This week, state ...

Weird Purple Frog Seduces Females From Underground

Meet the Indian purple frog, also known as the pig-nosed frog. Only formally discovered in 2003, the colorful amphibian is an endangered species native to the mountains of India’s Western Ghats. With a chubby, purple body and pointed, piglike snout, ...

Beware in the Bayou: Alligators and Crocodiles Can Climb

  You might think of crocodiles lurking in the water or perhaps sunning themselves on a riverbank, but it turns out these toothy reptiles’ domain extends to the upper branches of trees. A new study in Herpetology Notes documents the ...

Leapin’ Lizards! Crocodiles Can Climb Trees

New research shows crocodiles frequently make their way up trees to bask in the sun and keep an eye on their environment. You might think of crocodiles as being at home in the water — but it turns out these toothy ...

Extinct “Devil Frog” Sported Spikes, Body Armor

The giant “devil frog” was even more terrifying than previously thought, a new study says. Recent fossil analysis shows that the predatory amphibian, Beelzebufo ampinga, was smaller than first described, but had spiky flanges protruding from its skull and plate-like ...

New Species of River Dolphin: Freshwater Species of the Week

Scientists in Brazil proposed a new species of river dolphin this week, the first such designation for the highly endangered group in a century. The proposed new species of river dolphin, the Araguaian boto (Inia araguaiaensis), was found in the ...

Bird-Snatching Tigerfish: Freshwater Species of the Week

Earlier this week we reported on the first confirmed video that shows what many people had long feared: that some fish can leap out of the water and snatch birds in midair. That fish is the tigerfish, a “megafish” that ...

Repurposed Private Parts: 5 Unexpected Ways Animals Use Their Genitals

  Genitals are useful for transferring sperm, but why stop there? Some animals have evolved unusual and creative ways to use their naughty bits to trick predators or attract mates. Recently, scientists discovered that hawkmoths have an unusual defense against ...

Iconic Ganges River Dolphin: Freshwater Species of the Week

  Conservation India reports that an endangered Ganges river dolphin (or Gangetic dolphin, Platanista gangetica gangetica), was killed by villagers in Assam this week. A fishmonger was seen selling the marine mammal’s meat at a roadside market in Lezai-Kalakhowa. ...