active aged aging alone animal beach beachcomber black brown canine collar colorful colors colourful colours companion cool curious dog Ears edge eyes face features footprints friendly fun fur furry graying greying intelligent man’s best friend mottled nose old paw prints paws pet ripples sand seashore seaweed texture textures tongue walk walking water water’s edge wavelets waves wet anthuriums araceae climbers color coloration colour cultivars cylindrical-spike decorative distinctive epiphytes evergreen exotic flamingo-flower flamingo-lily fleshy-spike flora flowerheads flowers glossy herbaceous humidity-loving hybrids inflorescence laceleaf modified-leaf painted-tongue perennials poisonous red shapes shield-shaped shiny smooth spadix spathe species surface surfaces surfacing tail-flower toxic toxicity tropical waxy Australia back close-up defensive dry heat hot look out nature olive profile reptile season shingle slow summer sun sunny trachydosurus rugosus ant ant eater anteater Echidna mammal monotreme Porcupine prick sharp spines termites