That's because becoming a father in the wild is more competitive - and success is more down to chance. In comparison, humans have a less competitive and more pair-bonded mating ritual, in that a man and a woman tend to be together as they try for a baby. As a result, we've not had to develop these extreme penile features such as bones and backward-facing spines.
Most Americans think of turkeys in November, but for wild turkeys, the real drama unfolds in spring, when breeding season transforms forests and fields into complex social arenas filled with high-stakes courtship. During this time, male turkeys, or toms, display a striking combination of physical traits and behaviors to attract females, including gobbling calls, fanned tails, sharp spurs, hair-like beards on their chests, and the elongated snood draping over their beak, which research shows is a key factor in female choice.
Birds dazzle us with an extraordinary variety of colors and songs, signals that play a major role in how they communicate, attract mates, and evolve. Yet even after decades of research, many mysteries remain. Why do some males adopt drab plumage that makes them look more like females, despite the advantage of brighter colors in courtship? How do songs and plumage patterns influence not only the formation of new species, but also unexpected connections between them?
If you've been contemplating shaving your stubble, experts say it's time to put the razor down. From Brad Pitt to Prince William and Boris Johnson, many men look a lot better with a beard. However, scientific evidence shows that this isn't just a matter of personal taste. According to scientists, there is an evolutionary explanation for the 'beard glow up'.
But after comparing the preserved bones with a database of similar dinosaur back bones, it became clear the fossil was unique. Lockwood said: While the skeleton wasn't as complete as some of the others that have been found, no one had really taken a close look at these bones before unlike the others, this one had particularly long neural spines, which was very unusual.