Gene Lab examines human evolutionary history — from Australopithecus to Homo sapiens — and what genetics reveals about our deep past.
years of field research
peer-reviewed studies reviewed
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current research findings
Research into this field has expanded significantly over the past decade, with studies conducted across six continents revealing both shared patterns and important regional variations. Long-term ecological monitoring programmes — some spanning more than 50 years — have been particularly valuable in distinguishing cyclical variation from directional trends, and in identifying the ecological thresholds beyond which ecosystems shift to alternative states that may be difficult or impossible to reverse.
The application of remote sensing technologies — satellite imagery, LiDAR, acoustic monitoring, and environmental DNA — has transformed the scale and resolution at which ecological patterns can be detected and analysed. Where field surveys once required years of intensive effort to characterise a single site, modern sensor networks and automated analysis pipelines can monitor hundreds of sites simultaneously, providing datasets of unprecedented spatial and temporal coverage.
There's a particular kind of pleasure in sequencing a genome and finding something you didn't expect. We've been doing this long enough now that most of the obvious discoveries have been made — the human genome, the chimp genome, the dog genome, hundreds of bacterial genomes. But genomes of less-studied organisms still yield genuine surprises: genes that seem to have been horizontally transferred from bacteria, regulatory sequences conserved across 500 million years of evolution, structural variants that explain phenotypes no one could previously account for. The genomics revolution hasn't exhausted itself. If anything, the more we sequence, the more we realise how much we don't know about how genomes work and how they change.
Conservation genetics has come into its own as a discipline over the past fifteen years. We can now use whole-genome sequencing to identify the source populations of trafficked wildlife, assess inbreeding in small captive populations, guide translocation programmes to maximise genetic diversity, and detect hybridisation between wild and captive-bred animals. Environmental DNA allows us to detect species from water or soil samples without ever seeing the animal itself. These tools are changing what is possible in terms of monitoring and managing biodiversity — though they remain unevenly distributed, with most genomic resources concentrated in temperate, developed-world taxa while tropical biodiversity remains undercharacterised.
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