There are nocturnal animals (active at night) and diurnal animals (active during the day). But what about those animals that are most active during dawn or dusk? The animals that are busy during these ...

Biologist Adam Hartstone-Rose had one big question on his mind heading into this month's solar eclipse: Why are animals so stressed out during totality? On April 8, as the moon crossed in front of the ...

Fossil skeleton of the daytime active owl Miosurnia diurna from China (below) with an expanded view of the skull (top left). The eye bones or scleral ossicles are false colored blue and set in ...