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Controversy:

  • A. afarensis is the ultimate "single species" model

  • Garbage can

  • All variation is explained with sexual dimorphism

  • Span of 1 million years

  • All Males live in Tanzania and all females live in Hadar

Sources:

Gibbons, Ann. "Paleoanthropology. Lucy's 'Child' Offers Rare Glimpse of an Ancient Toddler." Science (New York, N.Y.), 313.5794 (2006): 1716.

Kimbel , William H. . "Discovery and Implications of the Dikika Child ." Becoming Human. Institute of Human Origins, August 7, 2007. Web. 30 March 2014. <http://www.becominghuman.org/node/site-credits>.

Sloan, Christopher P. . "National Geographic." Dikika Baby: Childhood Origins. National Geographic, November 2006. Web. 25 March 2014. <http://ngm.nationalgeographic.com/2006/11/dikika-baby/sloan-text/1>.

A small link to our humble beginnings

Dikika Baby

Hominin of the Day

Tuesday, April 1, 2014

Desiree K. Saenz

Scapula

Cranium with Maxilla and Mandilble

It's a Girl!

Fingers

Leg Bones

Australopithecus afarensis

Toes

Anatomy:

Males:4' 11" and 92 lbs

Females: 3' 5" 62 pounds

Brain from 380-550 c.c.

Miracle Child

After a Long Hard Second Labor

  • Also known as Dikika Baby, Lucy's Child and Selam

  • Found by Zeresenay Alemseged

  • December 10, 2000

  • Brain size of 330 c.c.

  • 3.3 million years old

  • Roughly around 3 years old
  • Most complete Infant skeleton

  • Fossilized skull, torso, Hyoid bone, feet and fingers also has many vertebrae

  • From the waist down she is human and from the waist up she is ape

It's no good growing a big brain if you don't have a long life span... You need that for the investment in a big brain to pay a return.

- Holly Smith

The First Madonna and Child?

Not!

The Original Madonna and Child

Habitat

and Diet

Origins of Childhood

  • Habitat is a mix of woodlands and savanna with many rivers

  • Based on teeth wear A. afarensis ate soft fruit and plants

  • However they were adapted and able to eat harder foods
  • Loss of grasping toe led to the carrying of infants

  • The rise of monogamy and social bonds

  • Potential roots of speech

  • Slow brain growth
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