Special thanks
to our supporters

  • NewsMatch
  • Ernie Pyle
  • Hunter S. Thompson
  • The Water Desk
  • Ida Tarbell
  • Tom Collier
  • Mark Rubin
  • Byron Howard
  • John Osborne
  • Andrew Lenards
  • Julie McGee
  • & many more!

We rely on readers like you. Join them & contribute to the Sentinel today!

Hosting provider

Proud member of

Local Independent Online News Publishers Authentically Local Local First Arizona Institute for Nonprofit News
A male monarch basks at Butterfly Wonderland in Scottsdale. Male monarchs can be identified by a set of black dots on the lower wings.

Global warming and pesticide use are disrupting the monarch’s migration patterns through Arizona and destroying milkweeds, the food source for its young. The number of migrating monarchs has dropped by as much as 90 percent in two decades. Should they be declared an endangered species? Read more»

A Japanese tree nymph butterfly, July 8.

Radioactive fallout from the Fukushima meltdowns has created mutant butterflies, researchers in Japan have said. Scientists say they've detected an increase in mutations in leg, antennae and wing shape among butterflies. Read more»

Gail Morris tags a monarch butterfly on its wing cell.

The monarch butterfly population in the West is declining because of drought and warming climates. Little is known about their migration patterns, but volunteers who tag the monarchs are helping researchers learn more. Read more»