Hybrid animals can be created in zoos and laboratories. But mixed-up animal mating is also occurring in nature.
Ever wonder why our freckles seem to multiply with the advent of warmer weather and longer days?
We’ve discussed before how endangered species are at risk from the increased likelihood of inbreeding, which leads to unhealthy offspring. There’s another danger to letting the numbers of animals in a given species become too low. It’s called genetic drift. Learn more on this Moment of Science.
What are the odds of giving birth to a boy? Learn more on this Moment of Science.
Although dwarfism can result in some medical problems such as spinal stenosis, where the spinal column is too narrow to accommodate the spinal cord, many little people lead healthy, productive lives. A more common problem involves inaccessibility in public spaces.