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Related Concept Videos

Diversity of Protists IV01:27

Diversity of Protists IV

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Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
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Diversity of Protists II01:27

Diversity of Protists II

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Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
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Diversity of Protists III01:27

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Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
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Diversity of Protists I01:15

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Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
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Speciation Rates01:07

Speciation Rates

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Overview
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Synteny and Evolution02:31

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John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
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Related Experiment Video

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Locomotor diversity in prosimian primates.

Daniel L Gebo1

  • 1Department of Anthropology, Duke University, Durham, North Carolina.

American Journal of Primatology
|January 25, 2020
PubMed
Summary
This summary is machine-generated.

Understanding prosimian locomotion is crucial for anatomical and paleontological research. Cheirogaleids exhibit general movement patterns, potentially reflecting ancestral primate locomotion.

Keywords:
captive settingcheirogaleidslemuridslorisids

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Area of Science:

  • Primate anatomy and paleontology
  • Locomotor behavior analysis

Background:

  • Prosimian movement studies are fundamental for inferring fossil primate anatomy and locomotion.
  • Duke University possesses a diverse prosimian collection suitable for movement research.

Purpose of the Study:

  • To analyze and understand the diverse locomotor patterns of extant prosimians.
  • To identify which extant prosimian group's locomotion may best represent ancestral euprimate movement.

Main Methods:

  • Observation and analysis of movement in a diverse collection of extant prosimians.
  • Comparison of locomotor patterns across different prosimian families.

Main Results:

  • Extant prosimians display varied modes of locomotion; no single species relies exclusively on one method.
  • Cheirogaleids demonstrate the most general locomotor patterns among studied prosimians.

Conclusions:

  • The general locomotor patterns of cheirogaleids may offer insights into the movement of ancestral euprimates.
  • Further research into prosimian locomotion can inform our understanding of primate evolution.