May 24 (UPI) -- Understanding what genes help dolphins survive can help conservationists know what potential threats may harm the animal's population, new research shows.

May 24 (UPI) -- Living cells are wired like computer chips, using direct signals to instruct them how to function, but they can also change behavior rapidly -- something chips can't do, new research by the University of Edinburgh shows.

May 24 (UPI) -- Crab species seem to exist in habitats that help them easily disguise their bodies, a new study says.

May 24 (UPI) -- Asteroid 1999 KW4, measuring more than a mile in diameter and boasting its own moon, will fly by Earth on Saturday.

May 23 (UPI) -- Europe's population of wolf-dog hybrids is growing. In a new paper, scientists warn packs of wolf-dogs could soon erase the genetic identify of wolves.

May 23 (UPI) -- Rocks recovered from a remote mountainside in East Africa have offered scientists fresh insights into an unusual type of volcano -- a type of volcanism more hazardous than previously thought.

May 23 (UPI) -- Scientists have demonstrated superconductivity at the highest temperatures yet.

May 23 (UPI) -- Redheads are at least 3 million years old. Scientists have discovered red pigment inside the fossilized fur of an ancient mouse specimen.

May 22 (UPI) -- As Earth's temperatures continue to rise, freshwater ecosystems in the Arctic are becoming unusually warm -- too warm for many native species.

May 22 (UPI) -- Astronomers have discovered a trio of exocomets circling Beta Pictoris, a star located 63 light-years from Earth.

May 22 (UPI) -- Scientists have recreated a 5,000-year-old beer using yeast resurrected from the sides of ancient pottery shards.

May 22 (UPI) -- To better understand the diets of baby tiger sharks, scientists have been catching young shark specimens and making them throw up. Analysis of DNA in the shark vomit showed baby tiger sharks consume songbirds.

May 21 (UPI) -- Without the moon and water, life on Earth wouldn't be possible. New research out of Germany suggests both were delivered by Theia, which collided with Earth 4.4 billion years ago.

May 21 (UPI) -- Astronomers have discovered a rare celestial object. Scientists suggest the fiery orb was created when two dead white dwarfs merged and become reanimated.

May 21 (UPI) -- Ravens in a lab setting can experience negative emotional contagion, according to a new study by researchers in Austria.

May 21 (UPI) -- It's good to be a mama's boy: new research suggests bonobo mothers boost their sons' reproductive success.

May 20 (UPI) -- The kilogram is no longer defined by a physical object. Instead, from here on out, the unit of measurement will be based on fundamental constants, atomic properties and physical absolutes.

May 20 (UPI) -- The moon has two faces -- the smoother, Earth-facing side and the rougher side, the dark side of the moon, which is marred by thousands of craters. Now, scientists know why the moon's hemispheres are so different.

May 20 (UPI) -- Rat poison intended to kill rats in Cape Town, South Africa, is seeping into the surrounding environment and harming local wildlife, including caracals, mongooses, otters and owls.

May 20 (UPI) -- New research suggests synchronized, driverless cars can relieve congestion and improve traffic flow by as much as 35 percent.