Photo of author Stephanie Pappas, Live Science

Stephanie Pappas, Live Science

Latest Posts From Stephanie

The Hole in the Ozone Layer Is at Its Smallest in Nearly Three Decades
Climate
By Stephanie Pappas, Live Science

The Hole in the Ozone Layer Is at Its Smallest in Nearly Three Decades

Although phasing out the chemicals that caused the ozone hole has led to gradual improvement, natural variability in the climate has also played a role.

A Salamander That Was Feared Extinct Has Been Rediscovered in Guatemala
Animals
By Stephanie Pappas, Live Science

A Salamander That Was Feared Extinct Has Been Rediscovered in Guatemala

The Jackson’s Climbing Salamander was last seen in 1975, and conservationists say its rediscovery highlights the role of nature preserves in protecting species from extinction.

Invasive Lionfish Are Ravaging Undiscovered Species in the Caribbean Sea
Animals
By Stephanie Pappas, Live Science

Invasive Lionfish Are Ravaging Undiscovered Species in the Caribbean Sea

These voracious predators might be gobbling up unknown marine biodiversity before researchers even recognize that it exists.

Rare Cannibal ‘T. Rex’ Ants Spotted for the First Time Ever
Animals
By Stephanie Pappas, Live Science

Rare Cannibal ‘T. Rex’ Ants Spotted for the First Time Ever

Until now, these Asian ants were a complete mystery to science, despite being discovered more than 20 years ago.

Amazon River Catfish Migrates a Record-Setting 7K Miles
Animals
By Stephanie Pappas, Live Science

Amazon River Catfish Migrates a Record-Setting 7K Miles

In the word's longest freshwater migration, the dorado catfish's life-cycle journey stretches nearly the width of South America, new research finds.

3-D Print Your Own Death Star 'Tractor Beam'
Gadgets
By Stephanie Pappas, Live Science

3-D Print Your Own Death Star 'Tractor Beam'

A team of physicists has published instructions and created a YouTube video for constructing a device that uses sound waves to move objects.

This Brainless Blob Learns — and Teaches, Too
Animals
By Stephanie Pappas, Live Science

This Brainless Blob Learns — and Teaches, Too

The finding about slime molds suggests that learning may predate the evolution of the nervous system.

A Deadly Avalanche in Tibet Was Likely Caused by Climate Change
Space & Innovation
By Stephanie Pappas, Live Science

A Deadly Avalanche in Tibet Was Likely Caused by Climate Change

Meltwater at the base of the Aru glacier in western Tibet sped the massive slide of debris.

Jesus' Tomb Opened for First Time in Centuries
History
By Stephanie Pappas, Live Science

Jesus' Tomb Opened for First Time in Centuries

A conservation team is working to preserve the shrine surrounding the tomb where Jesus is said to have been buried.

Ancient Chimps and Bonobos Hooked Up
Animals
By Stephanie Pappas, Live Science

Ancient Chimps and Bonobos Hooked Up

New research shows the two great-ape species interbred hundreds of thousands of years ago.

T. Rex Had Little Use for Its Puny Arms
Animals
By Stephanie Pappas, Live Science

T. Rex Had Little Use for Its Puny Arms

Tests on famous T. Rex skeleton Sue reveal few signs of stress on her stubby limbs.

Tiny 'Beardogs' Get New Place in Carnivore Family Tree
Animals
By Stephanie Pappas, Live Science

Tiny 'Beardogs' Get New Place in Carnivore Family Tree

Known to scientists for three decades, the extinct Chiuahua-sized creatures have been given new names.