Rick Tomlinson / Melges 32 "Fantastica" and "Sambs Pa Ti" racing at the Miami Grand Prix, Florida, USA. March 2010.

Piotr Naskrecki / Leafcutter Ant (Atta cephalotes) worker on leaf protecting larger workers carrying leaf from parasitoid flies, Costa Rica

Piotr Naskrecki / Looper Moth (Geometridae) caterpillar with aposematic coloration, Atewa Range, Ghana

Doug Wechsler / American toad (Bufo americanus) crossing road at night in front of car headlights, Philadelphia, Pennsylvania, USA, March

Guy Edwardes / Mixed woodland in autumn, Mangrt Pa, Julian Alps, Slovenia, October 2008

Piotr Naskrecki / Horned Leaf Chameleon (Brookesia superciliaris) camouflaged against brown leaf, Madagascar

Piotr Naskrecki / Wingless Bat Fly (Penicillidia sp) on head of Long-winged Bat (Miniopterus mossambicus), Gorongosa National Park, Mozambique

Piotr Naskrecki / Higher Termite (Cubitermes pallidiceps) queen being groomed by workers, Gorongosa National Park, Mozambique

Doug Wechsler / Leaf-footed Bug, Leptoglossus sp., hatching from egg, PA, Montgomery Co., Ft. Washington State Park

Doug Wechsler / American dog tick (Dermacentor variabilis) adult female, PA, Morris Arboretum, Philadelphia, Pennsylvannia, USA, June.

Piotr Naskrecki / Weaver Ant (Oecophylla sp) group carrying snail to their nest, Gorongosa National Park, Mozambique

Piotr Naskrecki / Pygmy Mount Gorongosa Chameleon (Rhampholeon gorongosae), Gorongosa National Park, Mozambique

Piotr Naskrecki / Cup Moth (Phobetron sp) caterpillar, Suriname

Brent Stephenson / Orchards and asparagus growing with a windbreak dividing the two, seen from a helicopter. Near Bridge Pa, Hawkes Bay, North Island, New Zealand.

Rick Tomlinson / Melges 32 fleet lead by "Samba Pa Ti", Miami Grand Prix, Florida, USA. March 2010.

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillars, Sipaliwini, Surinam

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillars in rainforest, Sipaliwini, Surinam

Piotr Naskrecki / Hawk Moth (Sphingidae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Hawk Moth (Sphingidae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Hawk Moth (Sphingidae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Crambid Snout Moth (Pyrausta californicalis), Woburn, Massachusetts

Piotr Naskrecki / Winter Moth (Operophtera brumata) pair mating, Woburn, Massachusetts

Piotr Naskrecki / Winter Moth (Operophtera brumata) female, Woburn, Massachusetts

Piotr Naskrecki / Hawk Moth (Sphingidae), Barbilla National Park, Costa Rica

Piotr Naskrecki / Hawk Moth (Sphingidae), Barbilla National Park, Costa Rica

Piotr Naskrecki / Looper Moth (Geometridae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Hawk Moth (Sphingidae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Hawk Moth (Sphingidae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Hawk Moth (Sphingidae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Cup Moth (Limacodidae) aposematically colored caterpillar with spines that can deliver an extremely painful sting, Atewa Range Forest Reserve, Ghana

Piotr Naskrecki / Dracula Ant (Amblyopone sp) worker puncturing the skin of a larva to sip its trickling blood, this behavior does not seem to harm the larva, but feeds the adults, Papua New Guinea

Piotr Naskrecki / Wood Ant (Formica subsericea) carrying pupal cocoon, Estabrook Woods, Massachusetts

Piotr Naskrecki / Cup Moth (Limacodidae) aposematically colored caterpillar, Ghana

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillar, Ghana

Piotr Naskrecki / Tube-nosed Fruit Bat (Nyctimene sp) roosting, Muller Range, Papua New Guinea

Doug Wechsler / Virginia ctenucha moth (Ctenucha virginica) on milkweed leaf. Philadelphia, Pennsylvania, USA

Doug Wechsler / Exuvium (shed skin) of Chinese mantid (Tenodera aridifolia) on leaf. Philadelphia, PA

Doug Wechsler / Milkweed / Oleander aphids (Aphis nerii) on common milkweed (Asclepias syriaca). Philadelphia, PA. August

Doug Wechsler / Milkweed tussock moth / tiger moth caterpillars (Euchaetes egle) first instar and egg mass on common milkweed. Philadelphia, Pennsylvania, USA. July

Doug Wechsler / Mason bee (Osmia sp) mud nest showing chambers and larvae. Penn Valley, PA, USA

Doug Wechsler / Large milkweed bug nymphs (Oncopeltus fasciatus) on common milkweed pod (Asclepias syriaca). Philadelphia, Pennsylvania, USA. July

Doug Wechsler / Imperial moth (Eacles imperialis) on leaves. Philadelphia, PA, USA

Doug Wechsler / Green Stinkbug nymphs (Acrosternum hilare / Chinavia hilaris) on milkweed leaf. Philadelphia, PA, USA

Doug Wechsler / American elderberry (Sambucus canadensis) in flower. Philadelphia, PA, USA

Doug Wechsler / Male and female American toads (Bufo americanus) in amplexus on road at night, with car headlights behind. Philadelphia, Pennsylvania, USA

Doug Wechsler / Male and female American toads (Bufo americanus) in amplexus on road at night, with car headlights behind. Philadelphia, Pennsylvania, USA. March

Doug Wechsler / Girl watching male and female American toads (Bufo americanus) in amplexus crossing road at night; Philadelphia, Pennsylvania, USA. March

Doug Wechsler / American toad (Bufo americanus) toadlet with tail: metamorphosing; Philadelphia, Pennsylvania, USA, June

Doug Wechsler / American toad (Bufo americanus) toadlet sitting on leaf; losing tail; Philadelphia, Pennsylvania, USA, May

Doug Wechsler / American toad (Bufo americanus) tadpoles congregating at edge of creek; Fairmount Park, Philadelphia, Pennsylvania, USA, May

Fred Bavendam / Blue-spotted Stingray (Dasyatis kuhlii) buried in the sand, Bali, Indonesia

Fred Bavendam / Blue-spotted Stingray (Dasyatis kuhlii) on ocean floor, Bali, Indonesia

Piotr Naskrecki / Ant (Crematogaster sp) tending scale insects, Rio Kapatchez, Guinea

Piotr Naskrecki / Looper Moth (Geometridae) caterpillars with aposematic coloration, Atewa Range, Ghana

Piotr Naskrecki / Looper Moth (Geometridae) caterpillar with aposematic coloration, Atewa Range, Ghana

Piotr Naskrecki / Looper Moth (Geometridae) caterpillars with aposematic coloration, Atewa Range, Ghana

Piotr Naskrecki / Graceful Chameleon (Chamaeleo gracilis) sub-adult, Atewa Range, Ghana

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillar, Mamang River Forest Reserve, Ghana

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillar with aposematic coloration, Ajenjua Bepo Forest Reserve, Ghana

Piotr Naskrecki / Cup Moth (Limacodidae) aposematically colored caterpillar, Ghana

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillar, Ghana

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillar being predated on by Stink Bug (Pentatomidae), Ghana

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillar with aposematic coloration, Atewa Range Forest Reserve, Ghana

Piotr Naskrecki / Prominent Moth (Furcula sp) caterpillar, Sichuan, China

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillar with spines that can deliver an extremely painful sting, Virachey National Park, Cambodia

Doug Wechsler / Great spangled fritillary {Speyeria cybele} on bull thistle, Wyoming State Forest, PA, USA

Piotr Naskrecki / Flap-necked Chameleon (Chamaeleo dilepis) in defensive display, Kruger National Park, Mpumalanga, South Africa

Piotr Naskrecki / Grass Moth (Cryptoses sp) on the fur of Pale-throated Three-toed Sloth (Bradypus tridactylus), Guyana

Piotr Naskrecki / Hawk Moth (Sphingidae) caterpillar feeds on plants containing toxic secondary compounds, and advertises the distastefulness of its body with bright, aposematic coloration, Guyana

Piotr Naskrecki / Ant (Pseudomyrmex nigrocinctus) collecting beltian bodies from young leaves of Acacia to feed their larvae, Costa Rica

Piotr Naskrecki / Iaraka River Leaf Chameleon (Brookesia vadoni) camouflaged against tendril, Madagascar

Piotr Naskrecki / Slug Caterpillar (Acharia sp) a pair of false eyes at its rear end confuses predators, Costa Rica

Doug Wechsler / Autumn fall leaves of American beech tree {Fagus grandifolia} PA, USA.

Doug Wechsler / Red spotted newt, red eft stage {Notophthalmus viridescens} PA, USA.

Doug Wechsler / Paulownia tree flowering {Paulownia tomentosa} Philadelphia, PA, USA.

Doug Wechsler / Fringed polygala flowering on woodland floor {Polygala paucifolia} PA, USA.

Doug Wechsler / Paulownia tree flowering {Paulownia tomentosa} Philadelphia, PA, USA.

Norbert Wu / Blue-spotted Stingray (Dasyatis kuhlii) stings with barb on tail, Fiji

Doug Wechsler / Spotted salamander during breeding season. PA, USA {Ambystoma maculatum}

Doug Wechsler / Wood frog males competing to mate, PA, USA

Doug Wechsler / Mourning dove nesting on sculpture of Christ {Zenaida macroura} PA, USA

Piotr Naskrecki / Straw-colored Fruit Bat (Eidolon helvum) group roosting, Maputo, Mozambique

Piotr Naskrecki / Pallas' Long-tongued Bat (Glossophaga soricina) flying with radio transmitter, La Selva Biological Reserve, Costa Rica

Piotr Naskrecki / Honduran White Bat (Ectophylla alba) flying, La Selva Biological Reserve, Costa Rica

Fred Bavendam / Blue-spotted Stingray (Dasyatis kuhlii) swimming over ocean floor, New South Wales, Australia

Fred Bavendam / Blue-spotted Stingray (Dasyatis kuhlii) swimming over reef, New South Wales, Australia

Fred Bavendam / Blue-spotted Stingray (Dasyatis kuhlii) on sand bottom, Bali, Indonesia

Steve Gettle / Elk (Cervus elaphus) bull drinking, Yellowstone National Pa rk, Wyoming

Piotr Naskrecki / Looper Moth (Geometridae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Hawk Moth (Sphingidae), Braulio Carrillo National Park, Costa Rica

Piotr Naskrecki / Cup Moth (Limacodidae) caterpillar, Ghana

Doug Wechsler / Peregrine falcon chicks eggs in nest in building {Falco peregrinus} PA USA