3 Weird Things That Domestication Did to Dogs
A world without dogs sounds like no fun at all. But many of the hundreds of dog breeds we know today are only a few centuries old. And, according to current research, if you go back in time at most 34,000 years dogs, as we know them, didn’t even exist! Even though we know that modern dogs and modern wolves share a wolf ancestor, no one’s sure exactly how dogs were first domesticatedâ€¦ or even when. But we do know that at some point, dogs evolved from mostly ignoring humans to wanting to be best friends with us.
That process of domestication came with consequences. Some of them you’d expect, like dogs becoming tamer over time. And others are justâ€¦ strange. For instance, there’s a trait that dogs share with other domesticated animals, that even Darwin thought was weird: lots of dog breeds have floppy ears. Evolutionarily, this doesn’t make much sense. It’s a result of deformed ear cartilage, and it can actually make it harder for a dog to hear. So why would we breed dogs to have deformed ears?.
Well, we didn’t, at first. At least, not on purpose. Instead, floppy ears seem to have a lot to do with other traits that domesticated animals have like patches of white fur, and adorable little faces that retain their juvenile features into adulthood. According to a new hypothesis, it turns out that in the process of domesticating dogs, we might have actually been affecting some of their stem cells. In a dog embryo, there’s a group of stem cells called the neural crest. And these cells are responsible for forming a specific set of physical features like the dog’s coat,.
And the structure of its face, and its adrenal glands. And according to this new research, a lot of the features that we associate with tameness may actually come from changes that have been made to this neural crest. The earliest dogs may have been less aggressive because they had smaller adrenal glands. So when early humans bred for tameness, the dogs probably also ended up with changes to other traits that are controlled by the neural crest like floppy ears, and the faces with more juvenile features, such as smaller jaws. So basically, by domesticating dogs, we may have ended up selecting for mutations in their.
Stem cells that made them less like wolves and more like the animal that’s probably sleeping in your living room right now. But domesticating dogs has had other useful side effects, too. For example, dogs are a whole lot better than their wild cousins at digesting starch. A study published in 2013 analyzed the genomes of 12 wolves, and 60 dogs of different breeds. The researchers were looking for genetic differences that showed up in all of the dogs, but none of the wolves. They found changes in 36 regions of all of the dogs’ DNA.
Some of the results were somewhat predictable, like changes to genes that are involved in brain development, which account for how friendly and tame dogs can be. But they also found something that they didn’t expect: the dogs had three genetic variations that helped them digest starch. This fits with the theory that dogs first started to be domesticated as many humans settled down to an agrarian life. At some point, hungry wolves might have started venturing into human settlements and eating their leftover starchy foodâ€¦ something that a lot of modern dogs seem to be into as well.
The wolves that were best able to digest the starch were better fed, so they survived to reproduce. And speaking of things that dogs are really into, you know how dogs really like chewing on bones . but it seems to take them forever to actually finish eating one? Well, that has a lot to do with their ancestry, too. Wolves eat meat. And they’re really into the stuff it doesn’t matter how delicious you think your pie is, a wolf is going to pick the steak any day. So they’ve got really sharp teeth that are perfect for tearing apart flesh, and powerful.
They Said Coconut Oil Was Great For You BUT This is What They Didnt Tell You
It seems that everything is based on coconut oil these days. We have coconut flour, coconut cream and milk, coconut water, coconut shreds, coconut butter and coconut oil. The coconut is from the Arecaceae (Palmae) family. The coconut’s flesh is rich in healthy fatty acids. Coconut oil consists of 90% of mediumchain saturated fatty acids. What makes the Medium Chain Fatty Acid so Good? These acids can be easily absorbed, digested and used by the body.
They can cross the bloodbrain barrier freely and the brain can use them as an energy source. Furthermore, the virgin coconut oil is completely natural, delicious, affordable and readily available. It also possesses antiinflammatory, anticarcinogenic, antimicrobial, and antioxidant properties. To add, it also improves the absorption of nutrients and it is not toxic for both humans and animals. Coconut Oil for the Body and Personal Hygiene Helps with the age spots.
Useful as an after shave. Against baldness. This oil supports regeneration of cells. As a body scrub. For bruises. For bug bites. For burns. As a lips moisturizer.
It nourishes the baby’s skin. Against dandruff. As a deodorant. Diaper salve. As an eye cream. As a soup for face wash. As a hair conditioned for deep treatment. As a hair gel.
For wounds. As a lubricant. As a makeup remover. For a massage. As a moisturizer. As a nipple cream. Against acne. As a preshave.
Soothes various skin conditions. Nourishes damaged skin. Relieves sun burn. As a sunscreen. As a treatment for a swimmer’s ear infection. Healing and moisturizing tattoos. As a toothpaste. Prevents and reduces wrinkles.
Coconut Oil for Overall Health: Breastfeeding. Good for the teeth and bones. Improves digestion. Improves your fitness levels. Improves the secretion of insulin. Improves lung function. Soothes an upset stomach.