Biology A–Z: D

Topic
Do animals exhibit handedness (paw-ness?) preference? From dogs to dolphins, some animals show a preference for using one side of their body more than the other — just like humans have handedness.
Do ants or other insects sleep, and if so why? Discover how ants and other insects rest, and what this tells us about their lives and behaviors.
Do bacteria die of old age? Bacteria are tiny, but their lifespans can be surprisingly long — or short. Discover what happens when they age.
Do bees use geometry to build their homes efficiently? Bees create hexagonal honeycombs that are both beautiful and mathematically efficient. But how does this relate to geometry?
Do beneficial viruses exist? If so, what examples are there? Viruses aren't always bad—some can actually help us. Discover which ones and how they work.
Do humans have enough biological differences to be grouped into races or subspecies? Explore how biological variations among humans influence the idea of race and subspecies classification.
Do large animals experience a meaningful delay when moving their most distant? Large animals have to move their limbs over long distances. Does this cause a noticeable delay in movement?
Does DNA have the equivalent of IF-statements, WHILE loops, or function calls? How? Explore how DNA's structure and function resemble programming concepts like conditionals and loops.
Does pain have a purpose? Pain is more than just an unpleasant feeling — it might actually help us survive. Let's explore why.
Does the string "...CATCAT..." appear in the DNA of Felis catus? Explore how genetic sequences relate to the word 'cat' and whether it might show up in a cat's genome.