A male tuatara at Victoria University of Wellington, New Zealand. It’s not a lizard, although it looks like one. It is the last surviving member (since the time of the dinosaurs) of its order of reptiles.
An e-cigarette is shown with a bottle of the flavored liquid that is injected in it to create tasty vapors.
People can sniff a trillion different scents — maybe more, scientists report. Here, a researcher sniffs a vial containing an odor used in the study.