Boa constrictors are generally lighter in color than pythons with a series of ovals separated by dark-colored, saddle-shaped patches.  The dark saddles usually have a light spot on each side, and the light ovals tend to become darker and often reddish colored toward the tail. The head is shaped similar to a Burmese python's, but boas have a thin, dark wedge on the head rather than a broad arrowhead. Boa constrictors typically reach 8-10 feet in length, although a few grow up to 13 feet.

There is considerable color and pattern variation in boa constrictors. The red-tailed variety is popular in the pet trade.

Red-tailed Boa Constrictor Oval markings on a Boa Constrictor

Red-tailed boas have reddish patches towards the tail

The oval patches tend to turn darker towards the tail.
Boa Constrictor

Boa constrictors have light-colored ovals separated by dark, saddle-shaped patches.

 A Burmese Python head and a Boa Constrictor head compared for markings

Burmese python head (left) showing dark arrowhead; Boa constrictor head (right) showing thin line extending to snout.


FWC Facts:
Just like fish, blue crabs use gills to breathe. But unlike fish, blue crabs can survive out of water for over 24 hours, as long as their gills are kept moist.

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