Related Experiment Video
Updated: Sep 30, 2025
08:44
Assessing Spatial Learning and Memory in Small Squamate Reptiles
Published on: January 3, 2017
7.7K
Digest: Study associates squamate rates, traits, and climates
1Department of Biology, San Francisco State University, 1600 Holloway Ave, San Francisco, CA, 94132.
Evolution; International Journal of Organic Evolution
|March 10, 2022
Summary
Environmental temperature significantly influences evolutionary rates in skinks, explaining 45% of variation. This highlights the need for diverse factors, not single causes, to understand evolutionary speed across species.
Area of Science:
- Evolutionary Biology
- Herpetology
- Ecology
Background:
- Evolutionary rates vary significantly across species, a phenomenon lacking a comprehensive explanation.
- Previous research has identified various factors influencing evolutionary rates in different taxa.
Discussion:
- This study investigates the drivers of evolutionary rate variation in a diverse group of skinks.
- Environmental temperature emerges as a major determinant, accounting for a substantial portion of observed rate differences.
Key Insights:
- Environmental temperature explains 45% of the variation in evolutionary rates among skink species.
- The findings support a pluralistic view of evolutionary rate determinants, moving beyond simplistic, single-factor models.
Outlook:
- Future research should explore the interplay of multiple environmental and genetic factors across diverse organisms.
- A comprehensive understanding of evolutionary rate variation requires integrating diverse ecological and historical contexts.
Related Concept Videos
01:07Speciation Rates
21.7K
Overview
21.7K
01:23Characteristics of Life
242.9K
Biology is a natural science that studies life and living organisms, including their structure, function, development, interactions, evolution, distribution, and taxonomy. The field's scope is extensive and divided into several specialized disciplines, such as anatomy, physiology, ethology, genetics, and many more. All living things share a few key traits, including cellular organization, heritable genetic material and the ability to adapt/evolve, metabolism to regulate energy needs, the...
242.9K
02:32Osmoregulation in Fishes
51.1K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
51.1K
01:27Diversity of Archaea III
98
Crenarchaeota, a prominent phylum of Archaea, is remarkable for its ability to thrive in extreme environments characterized by high temperatures and acidity. These microorganisms inhabit sulfuric hot springs, volcanic systems, and submarine hydrothermal vents, where temperatures often exceed 100°C. The unique adaptations of Crenarchaeota not only allow survival under such extreme conditions but also provide insights into the mechanisms of life in primordial Earth-like...
98
01:50Global Climate Change
24.9K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.9K
02:29Hybrid Zones
20.5K
Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
20.5K