Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

What is Natural Selection?01:32

What is Natural Selection?

Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
Phylogeny01:23

Phylogeny

Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
Animal Mitochondrial Genetics02:59

Animal Mitochondrial Genetics

Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
Incomplete Dominance01:43

Incomplete Dominance

Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
Type I Diabetes I: Introduction01:12

Type I Diabetes I: Introduction

Type 1 diabetes mellitus is a chronic metabolic disorder characterized by an absolute deficiency of insulin resulting from the autoimmune destruction of pancreatic β-cells. Although it can occur at any age, it is most commonly diagnosed in childhood, adolescence, or early adulthood. The loss of insulin production impairs cellular glucose uptake, resulting in persistent hyperglycemia and necessitating lifelong insulin therapy.Autoimmune Destruction of β-CellsThe hallmark of type 1 diabetes is an...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Bacteriological and Color Changes in Modified Atmosphere-Packaged Refrigerated Channel Catfish.

Journal of food protection·2019
Same author

Residual Effect of CO<sub>2</sub> on Bacterial Counts and Surface pH of Channel Catfish.

Journal of food protection·2019
Same author

Climate change and the integrity of science.

Science (New York, N.Y.)·2010
Same author

Human origins and evolution: Cold Spring Harbor, deja vu.

Cold Spring Harbor symposia on quantitative biology·2009
Same author

Hominid cranial remains from upper Pleistocene deposits at Aduma, Middle Awash, Ethiopia.

American journal of physical anthropology·2003
Same author

Activation of cholinergic and adrenergic receptors increases the concentration of extracellular adenosine in the cerebral cortex of unanesthetized rat.

Neuroscience·2003

Related Experiment Video

Updated: May 10, 2026

Transnuclear Mice with Pre-defined T Cell Receptor Specificities Against Toxoplasma gondii Obtained Via SCNT
13:36

Transnuclear Mice with Pre-defined T Cell Receptor Specificities Against Toxoplasma gondii Obtained Via SCNT

Published on: October 1, 2010

Primitive hominid canine from Tanzania.

T D White

    Science (New York, N.Y.)
    |July 17, 1981
    PubMed
    Summary

    A primitive hominid canine fossil from Laetoli enhances understanding of Australopithecus dental anatomy. This 1935 discovery was the first adult Australopithecus and ancient hominid found in East Africa.

    Area of Science:

    • Paleoanthropology
    • Paleontology
    • Human Evolution

    Background:

    • The Laetoli fossil site in Eastern Africa has yielded significant hominid discoveries.
    • Understanding early hominid dental anatomy is crucial for tracing human evolution.

    Purpose of the Study:

    • To describe and analyze a primitive hominid canine from Laetoli.
    • To contribute to the knowledge of dental morphology in the genus Australopithecus.

    Main Methods:

    • Fossil specimen recovery and curation at the British Museum of Natural History.
    • Comparative analysis of dental anatomy with other hominid species.

    Main Results:

    • The recovered canine represents the first adult Australopithecus specimen found.

    More Related Videos

    Generating De Novo Antigen-specific Human T Cell Receptors by Retroviral Transduction of Centric Hemichain
    08:48

    Generating De Novo Antigen-specific Human T Cell Receptors by Retroviral Transduction of Centric Hemichain

    Published on: October 25, 2016

    Isolation and Expansion of Adult Canine Hippocampal Neural Precursors
    09:37

    Isolation and Expansion of Adult Canine Hippocampal Neural Precursors

    Published on: November 29, 2016

    Related Experiment Videos

    Last Updated: May 10, 2026

    Transnuclear Mice with Pre-defined T Cell Receptor Specificities Against Toxoplasma gondii Obtained Via SCNT
    13:36

    Transnuclear Mice with Pre-defined T Cell Receptor Specificities Against Toxoplasma gondii Obtained Via SCNT

    Published on: October 1, 2010

    Generating De Novo Antigen-specific Human T Cell Receptors by Retroviral Transduction of Centric Hemichain
    08:48

    Generating De Novo Antigen-specific Human T Cell Receptors by Retroviral Transduction of Centric Hemichain

    Published on: October 25, 2016

    Isolation and Expansion of Adult Canine Hippocampal Neural Precursors
    09:37

    Isolation and Expansion of Adult Canine Hippocampal Neural Precursors

    Published on: November 29, 2016

  • This discovery marked the first ancient hominid identified in Eastern Africa.
  • The specimen provides insights into the dental characteristics of early Australopithecus.
  • Conclusions:

    • The Laetoli canine is a significant find for paleoanthropology.
    • It expands our understanding of Australopithecus diversity and evolution.
    • This fossil highlights the importance of Eastern Africa in early human origins.