Darling Ingredients surpassed earnings expectations in the fourth quarter, but faced top-line headwinds.Darling Ingredients (DAR 6.78%), a leader in converting waste products from the animal agriculture and food industries into useful ingredients, released its fourth-quarter results on Feb. 6. The company reported earnings per share (EPS) of $0.63, significantly beating the analysts' estimate of $0.42. However, total revenue of $1.42 billion didn't meet the consensus forecast of $1.449 billion and was down ...