Us dating reality show the
We tie a hammer to the wagging tail of a dog and let him wander about the work site for as long as you please, even millions of years.The swinging hammer on the dog is as likely to build a house as mutation-natural selection is to make a single new working part in an animal, let alone a new creature.The term macroevolution, by contrast, refers to the origin of new species and divisions of the taxonomic hierarchy above the species level, and also to the origin of complex adaptations, such as the vertebrate eye.Macroevolution posed a problem to Darwin because his principle of descent with modification predicts gradual transitions between small-scale adaptive changes in populations and these larger-scale phenomena, yet there is little evidence for such transitions in nature.In the lab, fruit flies are studied under every conceivable condition. That is evolution's only tool for making new creatures.It might even work if it took just one gene to make and control one part.Mutations in DNA happen fairly often, but most are repaired or destroyed by mechanisms in animals and plants.All known mutations in animal and plant germ cells are neutral, harmful, or fatal. They believe that millions of beneficial mutations built every type of creature that ever existed.
They exist in just about any environment: hot, cold, dry, wet, high pressure, low pressure, small groups, large colonies, isolated, much food, little food, much oxygen, no oxygen, in toxic chemicals, etc.A human generation takes about 20 years from birth to parenthood.They say it took tens of thousands of generations to form man from a common ancestor with the ape, from populations of only hundreds or thousands. A new generation of bacteria grows in as short as 12 minutes or up to 24 hours or more, depending on the type of bacteria and the environment, but typically 20 minutes to a few hours.This is where the imaginary part of the theory of evolution comes in.It says that ex, eye-hand coordination, balance, navigation systems, tongues, blood, antennae, waste removal systems, swallowing, joints, lubrication, pumps, valves, autofocus, image stabilization, sensors, camouflage, traps, ceramic teeth, light (bioluminescence), ears, tears, eyes, hands, fingernails, cartilage, bones, spinal columns, spinal cords, muscles, ligaments, tendons, livers, kidneys, thyroid glands, lungs, stomachs, vocal cords, saliva, skin, fat, lymph, body plans, growth from egg to adult, nurturing babies, aging, breathing, heartbeat, hair, hibernation, bee dancing, insect queens, spiderwebs, feathers, seashells, scales, fins, tails, legs, feet, claws, wings, beaver dams, termite mounds, bird nests, coloration, markings, decision making, speech center of the brain, visual center of the brain, hearing center of the brain, language comprehension center of the brain, sensory center of the brain, memory, creative center of the brain, object-naming center of the brain, emotional center of the brain, movement centers of the brain, center of the brain for smelling, immune systems, circulatory systems, digestive systems, endocrine systems, regulatory systems, genes, gene regulatory networks, proteins, ribosomes that assemble proteins, receptors for proteins on cells, apoptosis, hormones, neurotransmitters, circadian clocks, jet propulsion, etc.