Terri Irwin made sure tragic husband Steve was included in her moving birthday tribute to daughter Bindi.
The wildlife conservationist has turned 25 - and spent the day reading with her adorable daughter.
Dad Steve wasn't far away from the family's thoughts as her mum wished marked the milestone.
Terri took to Twitter to share two photos of Bindi, one with the The Crocodile Hunter, and wrote: "Happy birthday Bindi Irwin!
"It is wonderful to celebrate 25 years of your amazing achievements, your kind and loving heart, and your ability to make the world a better place every single day.
Taylor Swift seen looking cosy with Matty Healy's mum Denise Welch months ago"Today is the best! I love you so very much now, and forever & ever!"
Terri posted one photo alongside the Australian conservationist, who died in 2006, when Bindi was just a small child.
The star then shared a more recent photo of Bindi alongside brother Robert with a snake at Australia Zoo.
Bindi herself uploaded a series of photos with little Grace as well as husband Chandler Powell, her mum and brother Robert.
"T w e n t y • f i v e," she began her caption. "Today is my birthday, but most importantly it's another day to love this sweetheart family of mine."
Robert Irwin has discussed the importance of raising awareness of endometriosis after his sister's decade-long battle with it.
Bindi has been in "insurmountable pain" for the last decade due to the disease, which sees tissue similar to the uterus lining growing outside the uterus.
Earlier this year, Bindi underwent surgery, which found 37 lesions and a cyst, after years of pain, fatigue and nausea.
Doctors previously told her that "it was simply something you deal with as a woman", resulting in her giving up.
Her brother Robert discussed her condition during a chat on Sunrise in May.
Phillip Schofield's brother found guilty of sexually abusing teenage boy"This is something we all need to talk about, it's a discussion we all need to have. Endometriosis, like so many women's health complications, affects more people than we realise," he explained to hosts David Koch and Natalie Barr.
"She's now a new woman. I'm very vocal about women getting help and men putting it on their radar."
In March, Bindi took to her Instagram page to share a photo of herself smiling from her hospital bed after undergoing surgery.
She said that going into the surgery was "scary" but it was something she wanted to do as she "couldn't live like I was".
"Every part of my life was getting torn apart because of the pain," Bindi added. "To cut a long story short, they found 37 lesions, some very deep & difficult to remove, & a chocolate cyst."