Each week we find the most interesting and informative articles we can and along the way we uncover amazing and cool images. Here you'll discover 10 incredible photos and the stories behind them.

Teensy croaker:

Four newly discovered frog species from India are small enough to perch on a thumbnail with room to spare.

[Full Story: Frogs Fit on a Fingertip: Tiny New Species Discovered in India]

Underwater showdown:

Surprise! Guess who survives this ocean encounter?

[Full Story: Octopus vs. Crab Showdown Ends with a Twist in Startling Video]

Lemur mugs:

Modified facial-recognition software is helping scientists recognize individual lemurs from a distance.

[Full Story: Lemur Faces Are Unique, Facial Recognition Reveals]

Crystal cave:

The organisms were found inside enormous selenite crystals in a cave in Chihuahua, Mexico. They may be up to 50,000 years old.

[Full Story: Microbes in Glittering Crystal Cave Revived After 10,000 Years]

Sloths in VR:

Experience the Amazon rainforest's beauty and biodiversity via a new virtual-reality film.

[Full Story: Explore the Amazon Rainforest with New Virtual-Reality Film]

Cannibal Corpse Worm:

A newly discovered ancient worm that would have grown to more than 3 feet (1 meter) long is the oldest "Bobbit worm" ever discovered.

[Full Story: Cannibal Corpse Worm: 3-Foot-Long Creature Had Monster Jaws]

Giant rats?

Scientists have found a near-complete skull and a jaw from a pair of giant rodents belonging to a group that lived millions of years ago in South America.

[Full Story: Extinct Giant Rodents' Family Tree Rewritten by New Fossil Finds]

Chaco Canyon:

Hundreds of years before Christopher Columbus landed in the New World, a complex society in what is now New Mexico passed down power through its maternal line, a new study finds.

[Full Story: Moms Rule! Excavation at Chaco Canyon Reveals Maternal Lineage]

Athletic bees:

Bees roll tiny balls and score miniature goals, in a new study demonstrating their capabilities for complex learning.

[Full Story: Goal! Ball-Rolling Bees Score Big Science Wins]

Spineless monster:

The 307-million-year-old Tully monster — a marine animal with eyes like a hammerhead's and a pincer-like mouth — was likely a spineless creature, a new study finds.

[Full Story: Tully the Spineless Monster? Experts Say Ancient Beast Had No Backbone]