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Understanding selection in the early animals of the Ediacaran

Objective

One of the most dramatic events in the history of life on Earth was the emergence of animals after over 3 billion years of just microbial life. Yet the anatomy of the earliest animals, first found in the Ediacaran time period 575 million years ago, is significantly different to all life that followed. While we know they were animals, their unique anatomies have hampered our understanding of what drove their evolution. REVEAL will bring together geochemistry, palaeontology and evolutionary biology to create an innovative framework for understanding early animal evolution – specifically 1) What the patterns of early animal evolution were; 2) How selection acted upon these early animals; and 3) Why these adaptations occurred. REVEAL will leverage innovative laser-scanning protocols to fully record the fossils from 575–560 million years ago; coupled with geochemical analyses to capture changes in carbon cycling and ocean oxygenation, this project will fully document the early animal biosphere. This data will be used to determine What the biodiversity and environmental changes were. To determine How selection acted on early animals, REVEAL will capitalise on the in-situ, census preservation of Ediacaran animals to quantify fitness as the mean number of offspring within clonal reproductive clusters and identify the key traits for evolution as the ones that correlate with the best competitive ability. These trait-fitness associations will be used to quantify the type and strength of selection and determine how phenotypes and the adaptive landscape changed over the first 15 million years of animal life. Finally, to determine the most likely causal processes underlying early animal diversification we will test the relative influences of abiotic and biotic variables on traits to understand Why animals diversified during this time. Taken together this project will REVEAL the What, How and Why for early animals, determining the mechanisms and drivers of early animal evolution.

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Keywords

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Programme(s)

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Topic(s)

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HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

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(opens in new window) ERC-2025-COG

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Host institution

THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 2 150 793,68
Address
TRINITY LANE THE OLD SCHOOLS
CB2 1TN CAMBRIDGE
United Kingdom

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Region
East of England East Anglia Cambridgeshire CC
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 2 150 793,68

Beneficiaries (3)

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