Please read:
BBC News - Human brain's 'bat sight' found
Now I show you some of my dorincards with The Hoary Bat, one of the almost 1,000 species of bats known to man.
The alien might know even more.
Since I could NOT find any regular, commercial postcard with a hoary bat, I converted my cut-outs from books into "postcards".
Don't worry, most of these books and magazines are dirt-cheap, from thrift stores. :)
And you thought that I'm a millionaire, who spend$$ lavishly on this hobby...:)
Notice that the hoary bat is NOT the main subject of the stamp, but ...Hoary Cow!, that never stopped me! :)
Can you see the bat, besides the bird?
Hint: it's below the bird.
Here's a bigger scan:
Compare the above stamp with the stamp in the top image - do you notice the extra selvage that I added, to extend the image of the wings of the bat?
It's Lasiurus, not Lasurius...
The hoary bat averages 13 to 14.5 cm (5 to 5.7 in) long with a 40 cm (15.7 in) wingspan and a weight of 26 g (0.9 oz). It is the largest bat normally found in Canada. Its coat is of a dark brown colour and there is silver frosting on its back. With the major exception of the underside of the wing, most of the bat is covered in fur. The bat normally roosts alone on trees, hidden among foliage, but on occasion has been seen in caves with other bats. It prefers woodland, mainly coniferous forests, but hunts over open areas or lakes. It hunts alone and its main food source is moths." "Like other members of the family Vespertilionidae, the hoary bat
has a unique bony tail that they use as a sort of "feeler"."
You know what? ...Make your own jokes about that...
:)