{"id":"W4410647961","doi":"10.1126/science.adu0704","title":"The emergence and demise of giant sloths","year":2025,"lang":"en","type":"article","venue":"Science","topic":"Evolution and Paleontology Studies","field":"Earth and Planetary Sciences","cited_by":14,"is_retracted":false,"has_abstract":true,"ca_institutions":"Royal Ontario Museum; University of Toronto","funders":"","keywords":"Sloth; Arboreal locomotion; Demise; Cenozoic; Extinction (optical mineralogy); Extinction event; Extant taxon; Herbivore; Biology; Ecology; Trait; Homo erectus; Lineage (genetic); Paleontology; Evolutionary biology; Pleistocene; Habitat; Biological dispersal; Demography","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003809473,0.0001167795,0.0001212783,0.0004986048,0.000267737,0.0003156604,0.000180259,0.0002080003,0.001078682],"category_scores_gemma":[0.0011068,0.000110491,0.0001617705,0.0002975661,0.0004103166,0.0004120766,0.0004536449,0.0002430516,0.0001343871],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002689804,"about_ca_system_score_gemma":0.0001480632,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004019033,"about_ca_topic_score_gemma":0.009969733,"domain_scores_codex":[0.999925,0.00001378831,0.000002998649,0.00003090081,0.00001007038,0.00001727734],"domain_scores_gemma":[0.9996923,0.00007934672,0.0001008069,0.0000380961,0.00002973232,0.00005971974],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001349684,0.00001252412,0.9769427,0.00003291,0.00006235698,0.0002454619,0.0008849814,0.001805312,0.004833622,0.0007657444,0.0004529488,0.01382653],"study_design_scores_gemma":[0.000003284576,0.0000334366,0.9950619,0.00001231336,0.00001316995,0.0002693876,0.000396335,0.002615087,0.0003046762,0.0004096842,0.0008743388,0.000006402701],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.999572,0.00005738678,0.0000729524,0.00001682173,7.627735e-7,5.199551e-7,0.0001086604,0.000003897429,0.0001670615],"genre_scores_gemma":[0.9995005,0.00006136965,0.0001153078,0.000008479829,0.000001311284,9.818306e-7,0.0002237678,0.000001955738,0.00008630787],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.004019033,"threshold_uncertainty_score":0.007991254,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007281537526199341,"score_gpt":0.2438795150139241,"score_spread":0.2365979774877247,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}