Miyerkules, Nobyembre 30, 2011

The Story of Creation


This video is about how God made the heavens and Earth.

Stages of Man's Evolution

There are two major groups of Hominids- Australopithecus and Homo. The meaning of Australopithecus is Southern Ape and Homo is about human. But based on the newly discovered fossils, there are some scientist who proposed to have committed other ancient groups before the Australopithecus and Homo.The examples are Sahelanthropus tchdensis and Ardipithecus ramidus.


 Sahelanthropus was discovered in 2002 by the group of Michel Brunet of France. They found a skull in the Sahara that possessed an ape and human features. Its height is as tall as a chimpanzee. He has a brain size of 320 cc to 380 cc and he has small teeth like the other Hominid.


Ardipithecus ramidus lived 4.4 million years ago. He was 4 feet tall and bipedal. He lived as a forest dweller.


Evolution of man (click the image)




  • Hominid: Species of Australopithecus
The Hominids of Australopithecus lived over 4 million years ago. All the species of Australopithecus have small brains, flat noses, big teeth and short feet. The lived in forest at South Africa. They ate any kind of fruits, leaves and peanuts that can be seen anywhere. The remains of the Australopithecus was unearthed in Africa.

  1. The Australopithecus anamensis is the oldest known Australopithecus. Anamensis means "of the lake" because it was unearthed near the Kanapoi and Allia Bay in Kenya. Australopithecus anamensis lived 4.2 million up to 3.9 million years ago. The limb bones indicated that they were bipedal or walked with two legs.
  2. The Australopithecus afarensis is the specie that walked in Savanna 3.5 million up to 2.9 million years ago. The most famous skeleton of the A. afarensis is Lucy that was derivative in the most popular song of the Beatles, "Lucy in the Sky with Diamonds". She was unearthed in Ethopia. The fossils shows that her brain size and teeth is like the chimpanzee's brain and teeth and has quasi people's pelvic bone and legs. She is also a bipedal. Its toes were together and the heel is clear-cut.
  3. The first known Australopithecus  is the Australopithecus africanus. Africanus means "Southern ape of Africa". They had risen from 3 million up to 2.4 million years ago. A. africanus and A. afarensis are almost the same. They are both bipedal but the brain of A. africanus is bigger the A. afarensis. Their canine and molar imply that they are herbivore or they only eat fruits and leaves. 
Lucy, the Australopithecus

     4. The Australopthecus boisei was unearthed in Kenya. Saying that A. boisei are bipedal walking in 2.3 million up to 1.1 million years ago. A feature of A. boisei is having a sagittal crest. A. boisei and A. robustus are almost the same, but the skull and teeth of the A. boisei is bigger. 
   
     5. Australopithecus robustus has sagittal crest like A. boisei. they were unearthed in South Africa. The hallmark of the fossils is about 2.1 million up to 1.6 million years old. Australopithecus robustus has mascular body and thick skull. The sagittal crest and large teeth imply that the Australopithecus robustus are suitable in eating hard food. 



  • Hominid: Species of Homo
Homo means people. The brains of Homo are big and they are certainly a bipedal. 

    A Homo Habilis
  1. The first Homo is the Homo Habilis or the able man  or handy man because they know how to make a stone tool. The skeleton of the Homo habilis was unearthed in Kenya. Their brains are bigger than the Australopithecus.
  2. Homo erectus is the second specie. The meaning of Homo Erectus is the people with straight posture and walking. Homo Erectus had risen about 1.8 million years up to 300, 000 years ago. Homo Erectus is taller than Homo habilis. 
  3. The last species in the evolution of man is the Homo sapiens. The meaning of Homo sapiens is "prudent person". They have large brain size. 

Biyernes, Nobyembre 25, 2011

Thoughts in Theory of Evolution

          The first principle is microevolution, the occurrence and build-up of mutations in the genetic sequence of an organism. Mutations are predominantly random and can occur naturally through errors in the reproductive process or through environmental impacts such as chemicals or radiation. 


           The second principle of evolution is natural selection. Natural selection is a natural mechanism by which the fittest members of a specie survive to pass on their genetic information, while the weakest are eliminated because they are unable to compete in the wild.



            The third tenet is speciation, which occurs when members of a specie mutate to the point where they are no longer able to breed with other members of the same species. The new population becomes a reproductively isolated community that is unable to breed with its former community.