Introducing...

Born on Pi Day (3-14) from Raven & John

By collar colour:

Green: Galileo aka Gal

Female

White toes

Tan: Archimedes aka Pi

Female

White nose & pads

Black: Doppler aka Vroom

Male

White stripe from base of skull through white nose to belly, white tip of tail, white feet

Orange: Fibonacci aka Nacho

Male

Solid black

Red: Pythagoras aka Trig

Male

Solid black

Coats often change as they mature.