Lots of charming short stories - amazingly sweet Science Fiction.
Martians get word of the first manned trip to Mars and assume they are being invaded. What to do? Well clearly they should teleport the Invader there early and deal with the Terrible Threat. Unfortunately they get his dog Jeff instead who mistakes them for cheese flavoured mice.
The N.A.S.E.E.Z. Zoo is accused of mistreating 'dumb animals' and is nearly exposed for what it really is - an exchange program for aliens on study tours.