The Vertebrate Trait Ontology (VT) is a controlled vocabulary for the description of traits (measurable or observable characteristics) pertaining to the morphology, physiology, or development of vertebrate organisms.
The latest version of the new data release is located in "current_release".
The VT is protected with Creative Commo ns Attribution Non-commercial 4.0 International License.
Project home: https://www.animalgenome.org/bioinfo/projects/vt/
PURL to obtain the current release data: http://purl.obolibrary.org/obo/vt.owl
YAML: https://github.com/OBOFoundry/purl.obolibrary.org/blob/master/config/vt.yml