Correct option is A
Explanation-
Diclofenac is a non-steroidal anti-inflammatory drug (NSAID) that was commonly used to treat cattle. When vultures (especially Gyps species) fed on the carcasses of animals treated with diclofenac shortly before death, they suffered kidney failure leading to massive vulture population declines in India and surrounding countries. This discovery led to the ban of veterinary diclofenac in India in 2006, although illegal use still persists in some areas.
Incorrect options-
Option B - Olive Ridley turtles – Their decline is mainly due to fishing nets, habitat destruction, and light pollution affecting nesting behavior, not diclofenac.
Option C - Honey bees – They are affected by pesticides (like neonicotinoids), habitat loss, and disease—not diclofenac.
Option D - Oceanic sharks – Their population is declining due to overfishing and finning, not due to any known diclofenac toxicity.
So, the correct answer is option A - Gyps vultures
