It is in the nature of the animal to act as how their biological parents did. Genetically something in the brain keeps the "tradition" ongoing.
Answer: develop and use new antibiotics
Explanation: The discovery of the first antibiotic, penicillin, over 90 years ago, has revolutionised modern medicine. Since then, antibiotics have become one of the most common classes of drugs – used to prevent and treat infections, and make possible complex surgeries that have become routine, from caesarean sections to hip replacement surgeries and organ transplants.