Three Stages Of Horse Evolution Revealed
Scientists revealed a new theory which claims that there were three periods of evolution in a so-called ‘tree of horses.’ This period is characterized when several new species have already emerged. However, the changes in teeth and morphology had no influence on the periods of speciation. This is contrary to the popular belief that horse teeth evolved as ancient horses diversified into new species.
According to Paleontologist Bruce MacFadden from the University of Florida, this discovery “knocks traditional notions” about new species. If this study were true, there was no rapid diversification, and most importantly, it was not triggered by morphology. He also added that the paper produced by the research study is “very sophisticated and important.”
Based on classic notions, the evolution process involves longer teeth with extensive enamel. These adaptive traits have enabled an animal to cope with a certain environment. When it comes to horses, the development of teeth may have come from eating shrubs and leaves, to grasses in open spaces with dust and grit, Science News reports. Furthermore, MacFadden also said that it would have been difficult for horses to live on grasslands with short teeth.
Meanwhile, Science Alert stated that the research team traced 138 current and extinct species of horses which spans a total of 18 million years from the beginning of their existence up to present. In their research, they have concluded that both teeth and body size of horses have never changed. The group used modern computer models in mapping information regarding the tooth and body size from 131 extinct and 7 living species of horse.
Despite the long evolution of the species of horse, they have been one of the most beloved animals both for leisure and economic purposes. However, they can also be detrimental to our safety and security. A study conducted in Australia has shown that a total of 74 deaths were caused by horses, much higher than the 27 deaths caused by venomous snakes and stinging insects.
Self-Manipulating Cars To Trigger Organ Donor Shortage
Scientists have predicted that autonomous cars will dominate the streets a few years from now. However, this might compromise the number of organ donors.
New Antidote Could Cure Ricin Poisoning
Scientists may have already formulated the antidote against ricin that may help save lives.
UN Encourages More Women To Foray Into Science
The United Nations said that women graduating with life science degrees are at a steady decrease, especially in third world countries.
UFO In Australia Sparks Alien Theory Frenzy On Facebook
A mysterious UFO in Australia was filmed over the Tasmanian skyline, causing Facebook users to bring up alien theories about the origin of the object. However, experts debunked those theories saying that the object was just a piece of space junk.
Hepatitis E in Australia Puts Passengers Of Cruise Ship At Risk
Two cruises of Golden Princess have put passengers at risk for Hepatitis E in Australia. The health notification came after a crew menber was diagnosed with the rare form of liver infection.
Coral Reef Bleaching Becomes Alarmingly Widespread This Year
Another extensive coral reef bleaching is predicted to occur this year as thermal imaging shows new signs of reef discoloration. Scientists warn that if governments don't do anything about it, coral bleaching will occur in increasing frequency.
MORE IN ITECHPOST
Best Traveling Apps for Smartphones
Apps for mobile devices led personal, independent traveling to a new level. Nowadays, your pocket can easily fit all the possibilities of a small tourism agency. GPS, maps, currency calculators, city guides, dictionaries, hotel search services, etc. The right set of apps for traveling helps in planning your journeys and saving time, money, and nerves while you sit in a café or taxi, or lie in bed.
How Do Personal Emergency Response Systems Work?
Personal emergency response systems, known as PERS for short, are systems that help people to raise the alarm and get immediate help when a medical or personal emergency occurs. They are ideal for older people and anyone with a mobility issue or an injury or illness that can cause falls.
The 9 Most Popular (And Fun) Internet Games of 2019
Are you bored of board games? What are the most popular internet games from this year? These nine are popular for a reason. Check 'em out!