Search results for Sharks

Optics & Photonics Aug 21, 2026

Laser-cut aluminum foil could replace costly terahertz polarizers

When physicists at the ARC Centre for Transformative Meta-Optical Systems (TMOS) needed a key component for their terahertz experiments, they ran into a frustrating problem—they needed tiny optical devices, known as wire-grid ...

Ecology Aug 21, 2026

Shark DNA could hold answers to how we age

Age isn't just a number for one of the ocean's top apex predators. It's a mystery University of Georgia researchers are solving. A new UGA study has determined how to estimate the age of sharks by analyzing changes to individual ...

Ecology Aug 18, 2026

A new mathematical tool to uncover 'who eats whom' in nature

Understanding "who eats whom" is the key to keeping our oceans alive—and our dinner plates full. However, this invisible network that makes up the food chain can unravel with the pull of just one thread. Overfish one species, ...

Ecology Aug 13, 2026

Two oceans, one country—and 20 times more sharks in the prehistoric Pacific

How many sharks should a coral reef have? It sounds like a simple question, but almost nowhere on Earth is there a reef that has not at some time been fished or otherwise affected by humans, so there is no yardstick against ...

Environment Aug 13, 2026

Marine heat waves are cooking our ocean ecosystems—and will only become more common

You may have heard reports of fish die-offs or seen photos of hauntingly bleached coral.

Plants & Animals Aug 11, 2026

Dolphins learn how to use tools to hunt for fish from their mothers

From spears and the invention of the wheel to smartphones and robots, human societies have been building and using tools from the beginning. Human tool use has helped conquer new environments, increase communication and ultimately ...

Space Exploration Aug 9, 2026

The asteroid that may be three worlds

What shape is an asteroid? For (44) Nysa, the honest answer until now has been that nobody knew. It is one of the brightest and largest E-type asteroids in the main belt, a class with a surface rich in enstatite, and its ...

Evolution Aug 4, 2026

Family ties shape social lives of bull sharks

Bull sharks have a slight preference for spending time with their relatives, new research shows.

Planetary Sciences Aug 4, 2026

Asteroid Nysa's rare three-lobed structure challenges formation models

Named for the mythical valley where the god Dionysus was raised in secret by nymphs, the asteroid 44 Nysa inhabits the asteroid belt between Mars and Jupiter. Through observations by the Hubble Space Telescope, astronomers ...

Plants & Animals Aug 4, 2026

Study offers new clues to a long-standing mystery about bonnethead sharks

A new study of bonnethead sharks (Sphyrna tiburo) in Florida dispelled a previous hypothesis about how the distinctive head shapes of males and females develop, offering new insight into one of the species' most unusual biological ...

page 3 from 40