My 4 dog's cages are strung out on the floor, The sugar glider cage over the top of 2 dog cages, and the Ferret cage on top of the other 2 dog cages. Is that a bad idea? Not only for any weight factors, but for the well being of the animals?

i have two troublesome kittens and am wanting to keep them in a large cage while i am out of the house so they are safe and dont get into any more trouble. I cannot find a suitable sized "kitten" cage and have been advised that a dog cage is unsuitable for cats - why cant i put them in a dog cage?

How do I get my older cat to learn new tricks, so to speak? He's 7 years old, and was never taught to use a scratching post, so he just scratches up anything he can find. We bought a carpet lined scratching post, but he hasn't done much but look at it funny. We've tried putting toys on top and around it, putting catnip on it, giving him treats when he almost thinks about using it, things like that. We haven't tried the spray catnip yet, but plan on doing that soon. Another note, he's vicious and his claws hurt, lol. So it's tough to really put his claws on the scratching post or anything like that.