A dolphin regularly seen in the Dawesville Cut is mourning the death of her calf after been spotted pushing the deceased newborn around.
The dolphin, named Wild Turkey, was often seen with other mother's before becoming a mum herself recently.
"Dolphins have a high mortality rate in calves, especially in first borns. We are hopeful that she will become a mum again in the years to come," Estuary Guardians Mandurah posted on social media.
"At the moment she is grieving the loss of her newborn calf, seen on her own with the calf. Dolphins can mourn the loss of their calf for days. It is important she is left alone and given the space to do this until she is ready to finally let go."
Estuary Guardians Mandurah is asking anyone who sees Wild Turkey still with her calf to get in contact with them via Facebook.
Welfare concerns for woman with dementia last seen in Cooloongup
Charges laid over fatal West Coolup crash
Final boiler comes crashing down at old Kwinana Power Station
Kwinana Police seek public's help to find wanted man
Police continue to investigate assault during Rockingham Christmas lights activation
Man charged after allegedly setting 12 grass trees on fire in South West state forest
Lake Clifton Campers air rescued after becoming stranded in wild weather
Men charged after traffic stop in West Pinjarra leads to 80kg drug seizure
Green waste fees waived for Mandurah residents after weekend storms