Joseph Castro
Live Science
Hawaii, United States
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Past articles by Joseph:
Pterodactyl, pteranodon & other prehistoric predators
Meet the pterodactyls, some of the largest and scariest flying reptiles in all of history → Read More
Archaeopteryx: The Transitional Fossil
Archaeopteryx was an evolutionary link between dinosaurs and birds. Scientists long thought Archaeopteryx was the first bird, but recent discoveries have made them rethink that status. → Read More
Do Animals Get Jealous?
Research suggests that dogs and non-human primates experience jealousy just like humans. → Read More
Can Animals Count?
Humans aren't the only animals that can count. → Read More
Why Do People 'Twitch' When Falling Asleep?
The phenomenon, known as a hypnogogic jerk, is named in reference to the hypnogogic state — the transitional period between wakefulness and sleep. Hypnagogic jerks are also commonly known as hypnic jerks or sleep starts. → Read More
Do Animals Have Humor?
Between verbal jokes, slapstick comedy and tickling, there are numerous reasons we laugh. But are humans the only species with a sense of humor? → Read More
Tyrannosaurus Rex: Facts About T. Rex, King of the Dinosaurs
One of the largest known carnivorous dinosaurs, T. rex reigned during the late Cretaceous Period, 65 million years ago. → Read More
Do Animals Have Menopause?
Aside from humans, only some insects and two species of toothed whales go through a type of menopause, living long after they stop reproducing. → Read More
Do Animals Murder Each Other?
Animals regularly murder their own kind, and many species do so at a much higher rate than humans. → Read More
Animal Sex: How Meerkats Do It
Meerkats are anything but meek — including when it comes to their mating behaviors. → Read More
The Most Amazing 2017 Total Solar Eclipse Photos Taken From Space
Here is a gallery of awesome photos of the ‘Great American Solar Eclipse’ taken by astronauts, satellites and stratospheric balloons! → Read More
NASA's Best Photos of the Total Solar Eclipse of 2017
Check out NASA's best photos of the 2017 total solar eclipse from Earth, air and space! → Read More
Here Are the Most Amazing Photos of the 2017 Total Solar Eclipse
Here are the most amazing photos of the Great American total solar eclipse of Aug. 21, 2017, as it crossed the U.S. from sea to shining sea. → Read More
Total Solar Eclipse of 2024: Here Are Maps of the 'Path of Totality'
Plan your next eclipse trip with these maps of the 2024 total solar eclipse's path of totality across the United States, from Texas to Maine. → Read More
Animal Sex: How Red-Eared Sliders Do It
Red-eared slider reproduction involves large claws, extra-long penises and numbers of eggs. → Read More
Animal Sex: How Narwhals Do It
Little is known about the mating behaviors of arctic-loving narwhals, also called the unicorns of the sea. → Read More
Animal Sex: How Lobsters Do It
Lobster sex involves battles for dominance, calming urine and tender copulation. → Read More
Animal Sex: How Bed Bugs Do It
The cringe-worthy sexual behaviors of bed bugs involve traumatic insemination, no courtship activities and, sometimes, incest. → Read More
Animal Sex: How Hummingbirds Do It
Hummingbird mating involves using specialized courtship rituals, tail feathers that sing, and weaponized beaks. → Read More
The Complicated Sex Lives of Giant Pandas
Female giant pandas ovulate and are receptive to mating only a few days of the year. And males have some of the smallest penises relative to body size. Alas, sex is complicated and involves squeaks, anal rubbing, male posturing and sitting on each other. → Read More