“This shows that they evolved from normal ancestors and only secondarily reverted to radial symmetry.”

“Caudipteryx has short forelimbs and a feathered manus and is likely to have been a secondarily flightless bird.”

“The squat primarily works the quadriceps muscles of the thighs and, secondarily, the abductors, adductors, hamstrings and gluteals.”

“He has fulfilled two of his dreams, firstly overcoming his stammer and secondly helping others.”

“Firstly because he is a true competitor and, secondly, because he likes the feeling of newly-won, crisp pound notes in his pocket.”

“This is mal-practice for two reasons, people use their phones and secondly fill up their bins.”