Asanta wrote, “You DO realize that ALL mammals nurse their young, don’t you?” What about the duckbill platypus? It is an exception to the idea that all mammals nurse their young.
I do remember being taught that breast are special sweat glands and that mutations and selection caused certain sweat glands to be breast. That means that males are aroused by sweat glands! Amazing.
What was the first mammal to nurse its young? For nursing to happen many chemicals and parts had to be present and functional all at the same time. Otherwise the first mammal that was born would have died and evolution ended. Give me an explanation, please.
I know many deny it but in reality an evolutionist believes in miracles.To an evo a miracle is an amazing event the cause of which is extraordinary. For an evo a miracle is an exception to what can be explained by evolution. The whole process of feeding an infant is to an evo a miracle! He/She needs 100’s of millions of miracles to produce life as we see it today. I should welcome them to the world of believers!
The Platypus is a perfect example of evolutionary diversity. While it lays eggs it does so only after 28 days in utero and 10 days externally. But after it has used up the eggyolk the young hatches and takes milk from the mother. As the mother has no sweat glands adapted for delivering milk (kinda hard for a baby platypus to suckle a teat with a bill in place instead of a mouth). Apparently it laps the milk exuded through sweat glands into folds of skin.
It seems to be an example of an animal which has retained and successfully combined genes from early ancestors and developed various traits of those precursors which were useable in that environment. It is probably a lucky combination of mutation and evolution. But it does not constitute a large family and may be doomed eventually. It is probably at an evolutionary dead end.
Another such rarity can be found in the Silvery Salamander, which mates with males from other salamanders but rejects their sperm. The result is that all Silveries are females and identical clones of the mother. There are perhaps a few hundred left in Illinois and are a protected species.
These are the perfect examples of evolution which did not come out just right, but still able to survive in their particular environment. These species will eventually die as they are not very adaptable to natural changes. But hanging on !!!!
The evolution of mammals within the synapsid lineage (sometimes called “mammal-like reptiles”) was a gradual process that took approximately 70 million years, beginning in the mid-Permian. By the mid-Triassic, there were many species that looked like mammals, and the first true mammals appeared in the early Jurassic. The earliest known marsupial, Sinodelphys, appeared 125 million years ago in the early Cretaceous, around the same time as Eomaia, the first known eutherian (member of placentals’ “parent” group); and the earliest known monotreme, Teinolophos, appeared two million years later. After the Cretaceous-Tertiary extinction wiped out the non-avian dinosaurs (birds are generally regarded as the surviving dinosaurs) and several other mammalian groups, placental and marsupial mammals diversified into many new forms and ecological niches throughout the Tertiary, by the end of which all modern orders had appeared
The early ancestors of the modern horse walked on several spread-out toes, an accommodation to life spent walking on the soft, moist grounds of primeval forests. As grass species began to appear and flourish, the equids’ diets shifted from foliage to grasses, leading to larger and more durable teeth. At the same time, as the steppes began to appear, the horse’s predecessors needed to be capable of greater speeds to outrun predators. This was attained through the lengthening of limbs and the lifting of some toes from the ground in such a way that the weight of the body was gradually placed on one of the longest toes, the third.
So when you speak of a 100 million of (miracles), over 70 million years, a single mutation or adaption per year among tens of thousands specimens, would not be a rarity but in fact a near certainty. Breeders today can create hybrids in a few generations. Ever thought that a Great Dane and a Chihuahua are close relatives of wolves.
The origin of the domestic dog (Canis lupus familiaris) began with the domestication of the gray wolf (Canis lupus) several tens of thousands of years ago. Domesticated dogs provided early humans with a guard animal, a source of food, fur, and a beast of burden. The process continues to this day, as the intentional cross-breeding of dogs continues, to create the so called “designer dogs.”
These examples speak clearly in favor of Darwinian evolution. Some species stood still and some species continued to evolve. The difference between brain size in a human and a gorilla may well be due to the difference in jaw muscles.
The notion of the creation of this incredible variety of species and subspecies livig in earth environments from sea worms living in 300 degree sulphur vents on the ocean floor, to ice worms living in -40F ice packs in the No and So poles, to lizards living in 140 F dry heat of the deserts is false. These environments themselves changed sometime drastically in the course of earth’s evolution. These are clear examples of adaption to changing environments..
Is it not more miraculous to know that when you embrace your spouse, or your pet, that you are embracing millions of years of evolution and trial and error in nature. It seems miraculous, but it is a process that took a long long time.