Final answer:
Rodents may store grain pellet pesticides in undesirable locations, posing a risk to the environment and other animals.
Step-by-step explanation:
Yes, rodents may store grain pellet pesticides in undesirable locations. Rodents are known to hoard food, including grain pellets, in their nests or burrows. This behavior can lead to the storage of pesticides in places where they can contaminate the environment or pose a risk to humans and other animals.