Defensive Structures Collection

Spotted porcupinefish (Diodon hystrix), inflated with seawater, a defensive behaviour, Hawaii, Pacific Ocean

Short-beaked echidna (Tachyglossus aculeatus) with muddy face, emerging from burrow, Jervis Bay, New South Wales, Australia

Spotted Porcupine fish (Diodon hystrix) inflated, displaying defensive behaviour, North Pacific Ocean, Hawaii

Purple sea urchin (Sphaerechinus granularis), three of different colours. Tenerife, Canary Islands

Bush cricket or katydid (Tettigoniidae) with spines, camouflaged amongst moss. Forest interior of mid-altitude montane rainforest, Manu Biosphere Reserve, Peru

European hedgehog (Erinaceus europaeus) portrait, Lucerne, Switzerland. October

Lowland streaked tenrec (Hemicentetes semispinosus) on forest floor at night, Masoala National Park, north east Madagascar

Japanese pinecone fish (Monocentris japonica) under a ledge in the reef alongside a Giant moray eel (Gymnothorax javanicus) and Banded coral shrimps (Stenopus hispidus), Richelieu Rock

Long-snouted seahorse / Spiny seahorse (Hippocampus guttulatus) camouflaged on a White seafan (Eunicella singularis), Marine Protected area Punta Campanella, Costa Amalfitana, Italy, Tyrrhenian Sea

Raccoon butterflyfish (Chaetodon lunula), endemic Saddle wrasse (Thalassoma duperrey) and Sea urchin (Diadema sp)
Raccoon butterflyfish (Chaetodon lunula), endemic Saddle wrasse (Thalassoma duperrey) and Sea urchin (Diadema sp.) on reef, Lanai, Hawaii, Pacific Ocean

Spotted porcupinefish (Diodon hystrix) swimming over a reef, Hawaii, Pacific Ocean

European hedgehog (Erinaceus europaeus) walking through forest undergrowth, Finland. September

RF - Antennata lionfish (Pterois antennata) with four juveniles, composite image on black background, Indo-Pacific. (This image may be licensed either as rights managed or royalty free.)

Close up look between the spines of a Slate pencil sea urchin (Heterocentrotus mammillatus), Hawaii, Pacific Ocean

Ten-lined urchin (Eucidaris metularia) nestled on a reef, close up, Hawaii, Pacific Ocean

Tassled scorpionfish (Scorpaenopsis oxycephala), portrait, Triton Bay, West Papua, Indonesia, Pacific Ocean

Kangaroo island echidna (Tachyglossus aculeatus multiaculeatus), a sub-species of the mainland species, crosses a dirt road. Kangaroo Island, South Australia, Australia. Endemic

The Front Gate and Walls of the Largest Terrace in Kraton Ratu Boko (Ratu Bokos Palace), Yogyakarta, Central Java
Ratu Boko is an archaeological site known to modern Javanese as Kraton Ratu Boko or Ratu Bokos Palace. Ratu Boko is located on a plateau

CJ5 8944 Tower C Jaywick
Tower C, Jaywick, Essex Martello Towers June 17th 2015, Essex, Essex Martello Towers, historic buildings, Jaywick, Martello towers, Napoleonic tower, Essex, Essex Martello Towers, historic buildings

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"Nature's Armored Defenders: A Glimpse into the World of Defensive Structures" European hedgehog (Erinaceus europaeus) portrait, Lucerne, Switzerland. October In the enchanting forests of Lucerne, the European hedgehog stands tall as a master of defense, its spiky armor warding off any potential threats. Short-beaked echidna (Tachyglossus aculeatus) with muddy face, emerging from burrow, Jervis Bay, New South Wales, Australia Emerging from its cozy burrow in Jervis Bay, the short-beaked echidna showcases its mud-covered face - a clever disguise that adds an extra layer of protection against predators. Spotted Porcupine fish (Diodon hystrix) inflated, displaying defensive behavior With an impressive display of self-defense tactics, the spotted porcupine fish inflates itself to intimidate would-be attackers and deter them with its formidable spines. Purple sea urchin (Sphaerechinus granularis), three different colors. Tenerife, Canary Islands Adorning the ocean floor like vibrant jewels in Tenerife's crystal-clear waters are purple sea urchins showcasing their diverse color variations while silently guarding themselves behind their sharp spines. Bush cricket or katydid (Tettigoniidae) with spines camouflaged amongst moss in forest Meticulously blending into their surroundings amidst lush moss-covered trees lies a bush cricket armed with tiny but effective spines - nature's camouflage at its finest for this stealthy defender.