His call: calling sound, scroll a bit down and click at the loudspeaker: “Male Tokay (Gekko gecko) mating call” (when a question "open or upload" appears click "open", OK and the sound starts immedeately). It's loud enough to wake you up during night-time!
Advice in the case a Tokay bites: don't to pull him off but just put your finger / hand under water and the animal automatically loosen in a short moment. When trying to catch a Tokay never start pulling its body as the animal fasten it's legs with the sucking cup-toes which causes damage to the body when removed with force!