“Gizzard Stones!” She threw one of the stones to Grant. They look at each other in amazement.
Grant was ecstatic. “That’s it! It explains the periodicity, the-”
“The undigested state of the berries because it’s-”
“totally incidental or unrelated to the feeding pattern-”
“Doctors, slow down!” Hammond exclaimed.
Ellie took a breath. “Some animals like her, they swallow the stones-”
“and hold them in a muscular sack in their stomachs” Grant continued.
“which is called a gizzard, and it helps them mash their food, but what happens after a while-”
“the stones get smooth, so every six weeks the animal regurgitates them.”
“And when she swallows the stones, she swallows the poison berries too. That's what makes her sick.”
The two hi-fived, the case of the sick Triceratops finally solved.