Pets parents hate -- Praying mantis : the kung fu fighter -- How many legs? -- Millipedes and centipedes -- Hairy housemates : tarantulas -- On the trail of a snail -- Piranhas : like a bite? -- Slippery customers : frogs -- Quite a mouthful : pythons -- Toothy smiles : crocs -- Not so birdbrained! -- Rats rule -- Ferreting around -- Hogging the limelight.