1. Animals living in the desert and the ocean have become the source of medicine lately.
2. When testing ET-743, the drug made from the toxins of sea squirt, half of the patients responded favourably.
3. The poison deriving from the skin of a frog is highly addictive.
4. Treatments using drugs produced by animals are totally safe.
5. Human tissue and pig tissue are considered similar by our immune system.
6. Some specially trained dogs can sniff out particular types of cancer.