Puzzle 16: A Walk in the Wild

Visual clue. All four stamps prominently feature illustrations of prehistoric dinosaurs.

The hook. Dinosaurs are shown in various artist interpretations, ranging from grassy plains to snowy environments.

Here's the trap we set. You might have tried to group the snowy landscapes or orange sunsets together, but the true connection here is simply the species: Dinosaurs!

Visual clue. All four stamps depict owls, either in flight or perched on branches and ruins.

The hook. The featured species include the Great Grey Owl, the Little Owl, and the Snowy Owl.

Here's the trap we set. With two snowy owls present, you might have been tempted by a 'Winter Scenes' theme. But these are just part of the Owl group.

Visual clue. All four stamps show penguins, ranging from solitary birds to large colonies.

The hook. These flightless birds are depicted in different settings, from icy landscapes to setting suns.

Here's the trap we set. The penguins participate in multiple red herrings: one is in the snow, one has a sunset, and one has a royal portrait!

Visual clue. All four stamps prominently feature camels being ridden or led in arid environments.

The hook. Camels have historically been essential for transport, communication, and patrol in desert regions.

Here's the trap we set. We set a trap with exactly four stamps featuring royal portraits (three camels and one penguin). The real connection is just the camels!