Evolution is a very slow process but can happen very quickly at specific times. The Blue Moon Butterfly was being attacked by a parasite which destroyed male embryos. This led to a gender population inequality. Males only took up 1% of the population. A very important mutation changed that. A male was born with a malfunction in his genes. It actually allowed him to not be affected by the parasite anymore. As the male mated, when they had male offspring, they were mostly immune to the parasite.
W are losing a lot of elephants to ivory poachers. So elephants have done something incredibly smart. Two to five percent to elephants have been born without trunks every year. That had been going up by the year. At some point, it had risen to 38%. Elephants without tusks have been mating. Therefore, many of the offspring have been born without trunks. This has helped the elephants a lot! The amount of elephants we are losing every year have been going down to about five percent every year instead of the usual, which used to be above 10.
Two different species of mice are mating. Usually, this doesn't turn out well. The offspring would be so weak, it would die within two days.Miraculously, their mice pups were fertile. This is quite rare. In addition to this rare breeding, the mice got another advantage from their parents. The genes of the parents of the different species coded to make them immune to the poison warfarin. This poison is used in many pesticides. Therefore, the mice cannot be killed by pesticide.
Australian lizards, known as skinks are are evolving. That's pretty normal. Except one thing. They are evolving, and are leaving their LIMBS behind. According to a genetic family tree, this has been happening very quickly. Some skinks have evolved into this in just 3.6 million years.And, according to a genetic family tree, some skinks have gone snaky in just 3.6 million years, relatively fast in evolutionary time. Although they have evolved differently, their lifestyle is relatively the same. They swim around in the sand or soil, just like before.