SOS neutered / spayed animals are tattooed an “S” on the internal side of ear flap (distal pinna).
This ear mark is done to visibly identify that feral animals have been neutered / spayed as part of a population management programme.
This procedure is carried out while the animal is under anaesthesia for the neuter / spay operation.
Identifying sterilized animals, particularly females, can be very difficult without a visible indictor (such as tattooed “S”, ear notched, etc), and unnecessary repeat surgery is both a waste of resources and traumatic for the animals.
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