task_categories:video-classification license:cc0-1.0 size_categories:1M<n<10M format:csv modality:text modality:video library:datasets library:pandas library:polars library:mlcroissant doi:10.57967/hf/1010 region:us zebra giraffe plains zebra Grevy's zebra video animal behavior behavior recognition annotation annotated video conservation drone UAV imbalanced Kenya Mpala Research Centre