Genetics is the simple answer to why chickens lay different-colored eggs. Some chickens lay white shell eggs and some lay brown shell eggs, similar to the way hair color varies in people.
Cedar-apple rust is one of several plant diseases that are all caused by different species of a fungus called gymnosporangium. All of these diseases are referred to as gymnosporangium rust diseases.
Caterpillars start out as very small, tiny creatures. In the beginning they eat lots of food—just like the book “The Very Hungry Caterpillar”—and get bigger and bigger.
Bacteria are amazing single-celled, simple organisms. They’re found everywhere on the planet in all sorts of environments from your gut to the soil to the Arctic and Antarctic.
Squirrels, beavers, chipmunks and rabbits all have similarly-shaped teeth, because all of those animals have teeth that continually grow throughout their lives.