D-68-9 - A muskrat in tall grass beside a marsh in Fish Point Wildlife Refuge, near Unionville, MI, on an early spring morning.

D-68-8 - A muskrat in tall grass beside a marsh in Fish Point Wildlife Refuge, near Unionville, MI, on an early spring morning.

D-68-6 - A muskrat in tall grass beside a marsh in Fish Point Wildlife Refuge, near Unionville, MI, on an early spring morning.

D-68-5 - A muskrat in tall grass beside a marsh in Fish Point Wildlife Refuge, near Unionville, MI, on an early spring morning.

D-68-12 - A muskrat in tall grass beside a small stream in a marsh in Fish Point Wildlife Refuge, near Unionville, MI, on a late spring morning.

D-68-13 - A muskrat swimming in Peeper's Pond at the Chippewa Nature Center in Midland, MI, on an early spring afternoon.

D-68-14 - A muskrat swimming in Peeper's Pond at the Chippewa Nature Center in Midland, MI, on an early spring afternoon.

D-68-15 - A muskrat swimming in Peeper's Pond at the Chippewa Nature Center in Midland, MI, on an early spring afternoon.

D-68-16 - A muskrat swimming in Peeper's Pond at the Chippewa Nature Center in Midland, MI, on an early spring afternoon.

D-68-17 - A muskrat swimming in Peeper's Pond at the Chippewa Nature Center in Midland, MI, on an early spring afternoon.

D-68-18 - A muskrat swimming in Peeper's Pond at the Chippewa Nature Center in Midland, MI, on an early spring afternoon.

D-68-11 - A muskrat swimming in a small stream in a marsh in Fish Point Wildlife Refuge, near Unionville, MI, on a late spring morning.

D-68-10 - A muskrat swimming in a small stream in a marsh in Fish Point Wildlife Refuge, near Unionville, MI, on a late spring morning.