Yellow crazy ant males have two sets of DNA

Invasive yellow crazy ants create male ‘chimeras’ to reproduce

In 1868 Pierre Janssen watched the moon pass in front of the Sun. Using a special prism, he became obsessed with a line of yellow light that everyone assumed was sodium so he kept studying that mysterious line. Joseph Lockyer worked on the same problem and both are credited for helium

Slave trade records help reveal when first yellow fever mosquitoes bit humans