![Elasmobranch (Rays, Dogfish and Sharks) egg case variety](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Elasmobranch (Rays, Dogfish and Sharks) egg case variety
Elasmobranch (Rays, Dogfish, skates and Sharks) egg case variety
![Electroreception in the Hammerhead Sphyrnidae shark diagram](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Electroreception in the Hammerhead Sphyrnidae shark diagram
Electroreception in the Hammerhead Sphyrnidae shark diagram with inset of ampullae of Lorensini and hidden prey
![European Rockpool diagram](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
European Rockpool diagram
European Rockpool diagram showing lots of shoreline crustaceans, bivalves, anenomes, and gastropods, sea weeds, and background
![Fish anatomy diagram](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Fish anatomy diagram
Fish anatomy diagram simplified exterior and interior cross section view
![Fish scale annuli used to age a fish](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Fish scale annuli used to age a fish
Fish scales used to age a fish with zoom in annuli of fish scales
![Nurse shark Ginglymostoma cirratum](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Nurse shark Ginglymostoma cirratum
Nurse shark Ginglymostoma cirratum
![Heathland landscape with animals and heather and other plants](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Heathland landscape with animals and heather and other plants
Heath landscape based around heather and gorse with a distant sea and town; animals shown include rabbits, short eared owl, Stonechat, Sand lizard, blue butterfly, Adder, and Dartford warbler
![Coral reef landscape](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Coral reef landscape
Pen and ink coral reef sea scape showing different sorts of coral, jellyfish, octopus, distant islands, fish species, anenomes, hermit crabs, marine invertebrates, and distant shoals of fish in the warm and clear tropical seas
![Tufted duck pair Aythya fuligula](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Tufted duck pair Aythya fuligula
Tufted duck pair Aythya fuligula looking in different directions
![Puffin Fratercula arctica](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Puffin Fratercula arctica
Puffin Fratercula arctica standing on tufts of grass facing left
![Eider duck family Somateria mollissima](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Eider duck family Somateria mollissima
Edier duck Somateria mollissima pair with chicks in rainy coastal scene male swimming
![Black headed Gull Chroicocephalus ridibundus](https://lizzieharper.co.uk/wp-content/themes/lizzie/images/px.jpg)
Black headed Gull Chroicocephalus ridibundus
Black headed gull Chroicocephalus ridibundus with winter and summer head plumage