Subject categories
Animals & Wildlife → Butterflies
Animals & Wildlife → Insects - Behavior
Animals & Wildlife → Nature study
Climate, Environment, Natural Resources & Disasters → Ecological research
Climate, Environment, Natural Resources & Disasters → Life (Biology)
Climate, Environment, Natural Resources & Disasters → Natural history
Documentary
Documentary → Documentary films - United States
Education, Instruction, Teaching & Schools → Biology - Study and teaching
Educational & Instructional
Educational & Instructional → Educational films
Mathematics, Science & Technology → Biology - Study and teaching
Mathematics, Science & Technology → Life (Biology)
Short films
Short films → Short films - United States