Dr Eugenie Clark was an ichthyologist who studied sharks and tropical fishes. She showed that sharks had good memories and could learn tasks as well as a dog, and weren’t mindless killing machines. She was a keen conservationist, and the founder of what is now the Mote Marine Laboratory.

This pattern depicts Dr Clark in her diving suit with gas tank and gauge, diving mask, and breathing tube, producing a doll around 25cm tall.

Techniques: Magic ring, double crochet, treble crochet, half treble crochet, double treble crochet, slip stitch, i-cord, increase, decrease, jogless colour change.

Yarn: Aran/DK or worsted yarn. The sample uses KnitPicks Brava worsted, but you can substitute any similar yarn, though your end size may change.

Colours: Pink, black, grey, mid-brown.

Hook: 3.75mm, or appropriate hook for your yarn, but use a smaller size than your yarn usually demands.

Gauge/tension: No specific gauge/tension.

Notions: Safety eyes, brown, 12mm. Stuffing. 18cm length of thin flexible vinyl tube, diameter 3mm-5mm. Long black pipe cleaners, length 24cm. Nail or superglue. Black elastic, 5mm wide, about 40 cm off.

Additional tools: Tapestry needle.

Optional: thin knitting needle.