Fallen whale carcasses, abundant in the deep-sea, form ecosystems of their own. When a whale dies and sinks, the carcass provides a sudden, concentrated food source and creates an 'island' of organic matter on an otherwise food-poor...

This live-action video program is about the term "animal essential functions". The program is designed to reinforce and support a student's comprehension and retention of the term "animal essential functions" through use of video...

Today we’ll learn space vocabulary for IELTS Writing Task 2 and Speaking Part 3.

Process and steps of decomposition in an ecosystem. Advantages and factors affecting decomposition.

Earthworm living in Horse manure, The Compost Worm Eisenia venata. Usually found in garden compost but can also occur in wet, decaying leaf litter, organic-rich soils and manure heaps.

T/L various detritivores: dung fungi (Coprinus sp.) ink caps, yellow disc fungi, flies and slug on cow dung, UK

Dust Mites (Dermatophagoides farani) - allergy causing amongst fibres

Leech on jungle floor, Maliau Basin, Sabah, Malaysia, Borneo

Leech on jungle floor, Maliau Basin, Sabah, Malaysia, Borneo

Old, dirty Firestone whitewall tire, zoom out to old abandoned 1930s Packard automobile resigned to junkyard / auto junkyard and scrap heap detritus: stacks of old tires, junked 1930s - 1950s cars sun baked beneath layers of dust and...

T/L Gorse (Ulex sp.) track back from seedlings to young plant, United Kingdom

T/L Earthstar (family Geastraceae) fungus opening, take 1, United Kingdom

T/L decomposition of yellow autumn leaf litter by various organisms, track right, United Kingdom

Time lapse daffodils (Narcissus sp.) growing up through leaf litter, UK

Leech on jungle floor, Maliau Basin, Sabah, Malaysia, Borneo

Pulsing coral feeding, Southern Visayas, Philippines

Dust Mites (Dermatophagoides farani) - walk amongst dust

Dust Mites (Dermatophagoides farani) - walk amongst dust on black surface

Dust Mite (Dermatophagoides farani) on black surface, amongst dust

Giant Moray Eel (Gymnothorax javanicus) trying to swallow an entire fish head, Vaavu Atoll, The Maldives

T/L Fly agaric (Amanita muscari) fungus emerging from leaf litter, United Kingdom, Top shot

Termites, Maliau Basin, Sabah, Malaysia, Borneo

Waterfall, MS muddy waterfall in rainforest. Panama.

Waterfall, CU tilt down to foot of waterfall and foaming water. Panama.