Genetics and Evolution

Is There a Test for the Alzheimer’s Gene?

How Many Centimorgans Do Half Siblings Share?

Do Birds Have Penises? Why Some Do and Most Don’t

If I Have O Positive Blood, What Are My Parents’ Blood Types?

Can a Rat and Mouse Breed? The Biological Reasons Why Not

Are Bats Related to Cats? The Evolutionary Link Explained

How Many Mammals Lay Eggs? And Which Species Are They?

Is a Possum and Opossum the Same Thing?

Is Shrimp the Cockroach of the Sea?

Is Athletic Ability Nature or Nurture?

Is a Slug Just a Snail Without a Shell?

How many drones does a queen bee mate with?

Are Foxes in the Dog Family? Their Place in Canidae

Is a Ferret a Rodent? The Surprising Answer

What Ancient Creature Did the Octopus Evolve From?

Which Snakes Give Live Birth? A Look at Live-Bearing Species

Are Gray Eyes a Recessive Genetic Trait?

Animals That Are Protective of Their Young

Do Animals Get Down Syndrome? A Scientific Explanation

What Is the Main Job of RNA in the Cell?