in (the) winter

[angliholic]

Some frogs naturally freeze solid in winter, then thaw and hop away in the spring ... Scientists believe these frogs hold the secret for safer organ transplants.



Are "in winter" and "in the winter" interchangeable and synonymous? Thanks.

[Harry Smith]

Some frogs naturally freeze solid in winter, then thaw and hop away in the spring ... Scientists believe these frogs hold the secret for safer organ transplants.



Are "in winter" and "in the winter" interchangeable and synonymous? Thanks.

Yes, they are.

[engee30]

Some frogs naturally freeze solid in winter, then thaw and hop away in the spring ... Scientists believe these frogs hold the secret for safer organ transplants.



Are "in winter" and "in the winter" interchangeable and synonymous? Thanks.

Remember, however, that in the case below you are meant to use the:
In the winter of 1989, I almost got frozen to death...