How is it that Dalmatians and Chihuahuas are so different but are members of the same species, yet two sparrows that look nearly identical are different species?
In: Biology
Humans are really good at guided selection breeding programs. We have taken wild plants and turned them into potatoes, zucchini, and cauliflower. We’ve taken wild animals and turned them into dairy cows, turkeys, and an entire rainbow of different pet dogs.
But we haven’t started yet on sparrow breeding. If birds are even real, I mean. Natural selection has created those sparrows, and that takes effing forEVER compared to human breeding. Those untouched animals take thousands of generations of natural selection to change a species as much as human guided breeding can do in ten generations. Those species of sparrow separated a million years ago, while the dogs are practically cousins.
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