The Guinness Book of World Records is renowned for its collection of odd feats and extraordinary measurements. One of its entries may someday be a young miniature stallion named Einstein, which promises to rewrite the record as the smallest horse ever.

Almost all new dog breeds have been established in the last few hundred years. Due to this fast genetic diversification, researchers have been investigating how “descent with modification” occurred so quickly in the dog genome.

Scientists discovered something remarkable in a recent study—evolution can’t be reversed. In tracing the supposed evolution of a common protein, they introduced mutations to move the protein “backward” to each of its hypothetical transitional stages and discovered that each one wouldn’t work. What does that mean to the theory of evolution?

Charles Darwin admitted that the sudden appearance of fully formed creatures in fossil deposits was one of the biggest problems with his hypothesis that nature generated living creatures through natural selection.