Figure 1A
Photograph of individual 1121 taken on June 20th 2011. Image 1A taken at 0942am (GMT) showing multiple nicks on trailing edge of fin. Image 1A is considered a high quality shot. Images 1A, 1B and 1C clearly show the same fin shape, the teeth rakes and white skin lesions that show a convincing match despite the nicks.
Figure 1B
Photograph of individual 1121 taken on June 20th 2011. Image 1B taken at 0942am (GMT) but after image 1A, shows a clean trailing edge. Image 1B is considered lower quality. Images 1A, 1B and 1C clearly show the same fin shape, the teeth rakes and white skin lesions that show a convincing match despite the nicks.
Figure 1C
Photograph of individual 1121 taken on June 20th 2011. Image 1C taken at 1047am (GMT) during a second encounter of the same animal, also with a clean trailing edge. Image 1C is considered a high quality shot. Images 1A, 1B and 1C clearly show the same fin shape, the teeth rakes and white skin lesions that show a convincing match despite the nicks.
Figure S1A
Photograph of individual 1121 showing matches between years - S1A, B C and D. Fin shape and large white horizontal scratches on side of dorsal fin (orange ellipse) fade but remain constant. Scratches on body (red ellipse) fade with progression through time, but are still evident in each photograph. S1A and S1B from June 2011, S1C from July 2012, S1D from June 2013. In 2012 the individual picked up a nick in the trailing edge of its fin (S1C) This nick was different to that seen in the anomalous photograph (Figure 1A) from 2011 but it remained consistent when this animal was re-sighted again in 2013 (S1D).
Figure S1B
Photograph of individual 1121 showing matches between years - S1A, B C and D. Fin shape and large white horizontal scratches on side of dorsal fin (orange ellipse) fade but remain constant. Scratches on body (red ellipse) fade with progression through time, but are still evident in each photograph. S1A and S1B from June 2011, S1C from July 2012, S1D from June 2013. In 2012 the individual picked up a nick in the trailing edge of its fin (S1C) This nick was different to that seen in the anomalous photograph (Figure 1A) from 2011 but it remained consistent when this animal was re-sighted again in 2013 (S1D).
Figure S1C
Photograph of individual 1121 showing matches between years - S1A, B C and D. Fin shape and large white horizontal scratches on side of dorsal fin (orange ellipse) fade but remain constant. Scratches on body (red ellipse) fade with progression through time, but are still evident in each photograph. S1A and S1B from June 2011, S1C from July 2012, S1D from June 2013. In 2012 the individual picked up a nick in the trailing edge of its fin (S1C) This nick was different to that seen in the anomalous photograph (Figure 1A) from 2011 but it remained consistent when this animal was re-sighted again in 2013 (S1D).
Figure S1D
Photograph of individual 1121 showing matches between years - S1A, B C and D. Fin shape and large white horizontal scratches on side of dorsal fin (orange ellipse) fade but remain constant. Scratches on body (red ellipse) fade with progression through time, but are still evident in each photograph. S1A and S1B from June 2011, S1C from July 2012, S1D from June 2013. In 2012 the individual picked up a nick in the trailing edge of its fin (S1C) This nick was different to that seen in the anomalous photograph (Figure 1A) from 2011 but it remained consistent when this animal was re-sighted again in 2013 (S1D).
Figure S2 1010
Persistence of non-permanent scratches over a four year period in dolphin number 1059. Coloured arrows point to the same marks over time. Image from 2010.
Figure S2 2011
Persistence of non-permanent scratches over a four year period in dolphin number 1059. Coloured arrows point to the same marks over time. Image from 2011.
Figure S2 2012
Persistence of non-permanent scratches over a four year period in dolphin number 1059. Coloured arrows point to the same marks over time. Image from 2012.
Figure S2 2013
Persistence of non-permanent scratches over a four year period in dolphin number 1059. Coloured arrows point to the same marks over time. Image from 2013.
Figure S3 left
Photographs of individual 1121 showing the left hand side of the fin.
Figure S3 right
Photographs of individual 1121 showing the right hand side of the fin.
