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.
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.
Is The Great Barrier Reef Dead? Here's What Scientists Say
The Great Barrier is not dead...yet. According to scientists, the reef is hanging by a thread and will most deifintely be wiped out from the face of the Earth if governments continue to promote the use of coal.
Who Owns Antarctica? Find Out Facts About This Icy Continent
Who owns Antarctica and all of its rich marine life? Facts about this continent include a treaty which bans any country from claiming any part of the cold wasteland.
MORE IN ITECHPOST
'Tokyo Ghoul' Season 3 Delayed By Its Live-Action Movie? Ken Kenaki Returns With Another Identity?
"Tokyo Ghoul" season 3's release is delayed and there are countless speculations as to why it is being pushed back. Reports claim that the show is to give way to "One Punch Man" and "My Hero Acdemia" but new rumors say that it's lack of materials and storyline as well as its live-action movie are causing the delay.