Tortoise

On the strictly protected island of Golem Grad in North Macedonia, the tortoises are destroying their own population. During prolonged courtship, aggressive males are exhausting the females and frequently pushing them off the cliffs. Consequently, there are now one hundred males for every female capable of laying eggs. This is the only known example of demographic suicide in the wild to date.

There are tens of thousands of near-Earth objects (NEOs) that represent some of the most easily accessible resources in the solar system. Planning trajectories to rendezvous with these miniature worlds is notoriously difficult, and requires a massive amount of computational power to calculate. But a new paper from astrodynamicist Alessandro Beolchi of Khalifa University of Science and Technology and his co-authors offers a much less computationally intensive way to find these trajectories, and […]

The south coast of South Africa's Western Cape province is a rich source of fossil tracks and traces—clues suggesting what this environment may have been like many thousands of years ago.

A recent study by Dr. John Moretti of the University of Texas and local caver John Young uncovered the remains of Ice Age megafauna, revealing an entirely new ecosystem that once thrived on the Edwards Plateau. Among the finds were a genus of giant tortoise (Hesperotestudo) and a large armadillo-like pampathere (Holmesina septentrionalis). The work is published in the journal Quaternary Research.

Anybody who has seen "Finding Nemo" knows about those captivating monsters of the sea: anglerfishes. Variously horrific or alien-looking, many female anglerfishes sport long, protruding lures used for enticing prey or signaling during mating. Additionally, the dizzying variety of lures doesn't just include motion-based ones. Some anglerfish species have bioluminescent lures, while others have lures that release chemicals to attract prey or signal potential mates. Now, research from the […]