PHOENIX - 800 dogs and cats are being cared for by Maricopa County Animal Care and Control -- putting both of its Valley shelters at full capacity, a spokesperson for MCACC said Monday.

To help these animals find their furever homes, MCACC has partnered with Utah-based Best Friends Animal Society to offer free adoptions this weekend on Friday, April 21 and Saturday, April 22.

According to a release, free adoptions are valid for any cat (any age) and any dog over six months.

The MCACC shelters will also stay open an extra hour on Friday. Both shelter locations will be open Friday from 11 a.m. to 7 p.m. and Saturday from 11 a.m. to 5 p.m.

Shelter locations:

• MC Animal Care West (2500 S. 27th Ave, Phoenix)

• MC Animal Care East (2630 W. Rio Salado Pkwy, Mesa)

"The spring and summer months are historically the busiest times at MC Animal Care and the shelter hopes the two-day special will create some much needed kennel space," a release read.

PHOTOS: Adoptable dogs at Maricopa County Animal Care