{"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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004703671,0.00003168656,0.00004632345,0.00003287015,0.0005205742,0.00001471253,0.0002107106,0.00001063477,0.00004845078],"category_scores_gemma":[0.0002170027,0.00001817978,0.000009044676,0.0003028637,0.001496077,0.00007505281,0.00001642252,0.0000341715,0.000009168938],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":6.487901e-7,"about_ca_system_score_gemma":0.00006929991,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001818411,"about_ca_topic_score_gemma":0.0120599,"domain_scores_codex":[0.999549,0.00001641296,0.00008202128,0.0001118008,0.000106466,0.0001342651],"domain_scores_gemma":[0.9996703,0.0001359933,0.00002527892,0.00009385812,0.00004559733,0.0000289804],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000004797066,0.000001477612,0.958606,0.000004163632,0.000002638169,3.064215e-7,0.0001750426,0.00001885834,0.000304463,0.00274178,0.0005845855,0.03755588],"study_design_scores_gemma":[0.00002952512,0.00001180498,0.9902011,0.000005391778,0.000002171563,9.933328e-7,0.0003180778,0.001831034,0.0001571496,0.001446237,0.00597411,0.00002245827],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7579699,0.02794915,0.0002882062,0.004347466,0.001146756,0.0001266997,0.00000932717,0.00002319351,0.2081393],"genre_scores_gemma":[0.9980034,0.000739945,0.0002202595,0.0001198143,0.000004653059,2.687896e-7,1.169573e-7,1.236092e-7,0.0009113982],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2400335,"threshold_uncertainty_score":0.672971,"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."}}