The others are from the book "Baleful Beasts and Eerie Creatures". For some reason the stories popped into my head a while back.
TIGGER by A.M. Lightner
Tigger is the name of the sentient cat that serves as scout and guard, of sorts, for a team of astronauts exploring an alien world somewhere in the future.
Tigger's the one on the left, a ...
You've confirmed that the last story was "A Thirst for Blood" by Arthur Toffee, but unfortunately, that story seems to have only been recorded in one anthology, More Science Fiction Tales: Crystal Creatures, Bird-Things & Other Weirdies, the contents of which do not match up to your other stories.
Summary from here:
A Thirst For Blood (Arthur ...