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- Rats[remove]5
- Altruistic behavior in animals1
- Brain1
- For the younger set1
- HALO Trust (Charity : Thornhill, Englnd)1
- Insects1
- Kindness1
- Land mines--Detection--Cambodia1
- Perez, Samiel D1
- Tarantulas1
- Washington Adventist University1
- Washington Adventist University (Takoma Park, Md.). Biology Department1
- Working animals1