Fossilized Wisdom Teeth May tell Difference between Modern Humans and Hominins

Fossilized Wisdom Teeth May tell Difference between Modern Humans and Hominins

Small size of wisdom teeth has baffled researchers since long. But now, they have an explanation to prove why there is difference in modern human and hominins’ teeth sizes.

A new study by Monash University researchers suggests that evolution of human was simpler than previously believed. It also showed that it is now easy to predict sizes of teeth missing from prehistoric human remains.

For the study, the researchers analyzed human teeth and hominins fossils to ensure that wisdom teeth follow ‘the inhibitory cascade’ rule, which states that size of a particular tooth depends on the size of the tooth next to it.

Fossilized teeth can be used to understand more about human ancestors and their evolution over the last seven million years, said Dr Alistair Evans, a researcher at the Monash University and lead author of the study. Also, ancient humans’ teeth can reveal why modern humans are different from hominis, Evans added.

Results of the study have given a pattern which shows that human evolution was much simpler than earlier thought, Dr Evans explained.

The researchers used data on modern humans and hominins remains over last several years, and 3D imaging to examine the fossilized teeth. After that, they applied the results to hominins and australopiths.

Dr Evans said the two groups of hominins follow the inhibitory cascade, but they are slightly different. “There seems to be a key difference between the two groups of hominins – perhaps one of the things that define our genus, Homo. We can then use this inhibitory cascade rule to help us predict the size of missing fossil teeth”, the researcher continued.

Researchers also examined modern humans’ teeth, including those housed at the Adelaide Dental Hospital.


User login



You May Have Missed...

Google warns Android users of root access vulnerability
Wed, 03/23/2016 - 09:35

In an Android security advisory published last Friday, Google officials have warned the Android users about a security vulnerability which can...


Nigeria Update

Fresh Polio Cases lead to WHO Travel Restrictions on Pakistan and Syria
Tue, 05/06/2014 - 00:45

World Health Organization has slapped international travel restrictions on Pakistan, Cameroon...


Economy Watch

US Import Prices decline in April
Thu, 05/14/2015 - 01:13

For a straight 10th month, US import prices declined in April. The decline could be due to the...


Health Tonight

FDA to Test Glyphosate Residues in Food for First Time This Year
Mon, 02/22/2016 - 12:56

Two years back, US Government Accountability Office (GAO) criticized US Food and Drug...


Science Tonight


UK News

HIV pill for men can prevent 10,000 new cases in UK by 2020
Fri, 01/15/2016 - 03:07

According to a new research, a daily intake of HIV pills in the UK can prevent upto 10,000 new...


Pharmaceuticals

Aetna
Sat, 01/17/2015 - 06:04

Aetna inc., health care company, on Friday announced that it has signed a deal with Gilead...


US News

Apple’s next product launch event to be held on March 21
Mon, 03/14/2016 - 10:19

In an announcement made on Friday, tech biggie Apple said that it will host its next product...


Technology Tonight

Engineers from bigwig email service providers publish new email security standar
Tue, 03/22/2016 - 12:00

In a draft proposal published on Friday, engineers from some of the world's biggest email...