Latest articles by Joseph Castro
Animal Sex: How Hyenas Do It
The complicated world of hyena sex involves social hierarchies, weird and potentially dangerous courtship rituals and female pseudopenises that make forced sex impossible.
Animal Sex: How Butterflies Do It
When it comes to sex, are butterflies as nurturing and gentle as they appear to be, or is there a more aggressive side to their mating?
Animal Sex: How Antechinuses Do It
Antechinus sex involves ambushes, intermittent copulation lasting 14 hours and ultimately suicide.
Homo Erectus: Facts About the 'Upright Man'
Homo erectus was an ancient human ancestor that lived roughly between 2 million and 100,000 years ago.
Animal Sex: How Sloths Do It
Rather than mundane, lazy sex, sloths participate in quite the mating game. In fact, sloth sex involves high-pitched screams, promiscuity and eye-gouging battles.
Animal Sex: How Polar Bears Do It
Polar bear sex involves long-distance tracking, fierce battles and lengthy copulation.
Animal Sex: How Octopuses Do It
Octopus mating involves shifting body colors, detachable "penises," long-distance mating and sexual cannibalism.
1st Americans Used Spear-Throwers to Hunt Large Animals
Fractures on spear points show, for the first time, that the first North Americans really did use spear-throwers to hunt from safe distances.
Animal Sex: How Anglerfish Do It
Anglerfish mating involves biting, tissue fusion and the complete lack of mate choice by females.
Animal Sex: How Dung Beetles Do It
Dung beetle sex involves short breeding periods, intense competition and, of course, poo.
Animal Sex: How Flamingos Do It
Flaming sex involves make-up, elaborate group dances and seasonal monogamy.
Animal Sex: How Snakes Do It
Snake sex involves mating balls, battles similar to arm-wrestling and, sometimes, asexual reproduction.
Astronomical Find: Ancient Greek Wine Cup May Show Constellations
Long thought to show a random assortment of animals, an ancient two-handled wine cup may actually show one of the earliest depictions of Greek constellations.
