Bats can use leaves as “sound mirrors” for better navigation (2019)
arstechnica.com
arstechnica.com
Fun fact from Ben Rich's Skunkworks book: when the Lockheed F-117 Nighthawk, the world's first stealth plane, was stored in a cave before it's first deployment in the Gulf, it was found in the morning surrounded by dead bats since they keep bumping into it overnight, as the plane was also invisible to their echolocation, which gave the crew reassurance over its stealth capability.
> “Leaves” is the correct way of pluralising “leaf”. If you say “leafs”, you will be making a grammatical error. If you want to say “leaf’s”, you can do so when talking about possessions.
$ dict leaf | head -5
8 definitions found
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Leaf \Leaf\ (l[=e]f), n.; pl. {Leaves} (l[=e]vz). [OE. leef,If the point of communication is to enhance clarity and avoid ambiguity then leafs is obviously the smarter choice.
Leaves- The plural of leaf, or to depart
Leafs- A verb meaning to rapidly turn pages while skimming for content.
When to Use Leafs
You will use the word leafs on one occasion.
As a verb, you can say that someone is leafing through
a magazine, while as a noun, a single piece of paper is
a leaf. Leafs is the present tense term for searching
through a book or other collections of paper.
> But leaves has a second meaning which makes it ambiguous.
It is unambiguous in that sentence structure where it clearly must be a noun. Even if it was ambiguous here, using leafs would still be wrong.