Pikas have distinct calls that vary in duration. The call can either be short and quick, a little longer and more drawn out, or long songs. The short calls are an example of geographic variation. The pikas determine the appropriate time to make short calls by listening for cues for sound localization.



These postcards are made from thick high-quality matte paper, so they serve as a great addition to a gift or just a thoughtful written note to a friend.

• 4/4 full bleed

• 300 GSM

• Paper thickness: 0.13″ (0.34 mm)

• Laminated feel

• White matte back with a small QR code or a bar code

• Blank product sourced from the US