Complete guide with hints, spangram, and all theme words for Mar 21's puzzle
Strands Theme of Mar 21 is:
This phrase means something is exactly correct or perfectly accurate, often used in idioms involving the facial feature being themed today.
Reveal letter by letter or uncover a full solution

The theme 'Sniff sniff' suggests a focus on the sensory experience of smell or the anatomical features used to detect odors. You'll be looking for various terms that describe a specific part of the face across different species.
Spoiler Warning
Strands answer for Sniff sniff are revealed below!
Below is the complete solution for Today's Strands. Enjoy the game!

Strands is a free daily word puzzle from The New York Times. Each day, you get a theme and a letter grid where you must find hidden words. Like Wordle and Connections, it refreshes at midnight with a new puzzle.
You get a 6×8 grid of letters. Find all theme words plus the "spangram" that spans the grid and reveals the theme. Connect letters horizontally, vertically, or diagonally to form words. Find 3 non-theme words to unlock a hint.
This Strands Hint points toward biological features and colorful vocabulary used to describe how we interact with the air around us. Focus on the physical structures found on various creatures that facilitate scent. Check out the full Strands Hint below for more details.
The difficulty lies in identifying a mix of very informal slang and highly technical scientific terms. If you are stuck on the long words, try looking for shorter four-letter anatomical terms first. Check out the full Strands Hint below for more details.
Try scanning the corners for specific consonants common in biological terminology to find the longer words. Looking for common suffixes used in vernacular descriptions of faces will also help clear the board. Check out the full Strands Hint below for more details.
The spangram today stretches across the grid, connecting the left side to the right side in a horizontal fashion. It encapsulates the essence of being perfectly accurate while referencing the theme. Check out the full Strands Hint below for more details.