"And then she can time her jumping performance at take-off to execute a jump that is optimal in terms of energy demand." The scientists recruited a number of female spiders for their work ...

Spiders come in so many colors, shapes, and sizes. Black and white spiders are common and they also have unique markings. For example, some spiders are black with white stripes or spots, while others ...

Male and female black widow spiders exhibit striking differences. Females are larger, with glossy black bodies and a red hourglass marking, while males are smaller and drabber. Females are known ...