Animals in the dark depths are adapted to cold, pressure and scarce food, often with bioluminescence.
Adaptations: slow metabolism, large mouths, bioluminescence, pressure-resistant proteins (piezolytes such as TMAO). Food comes from marine snow and whale falls.
Food is scarce, so biomass is low, and organisms are often slow and long-lived. Many species remain undiscovered. Deep mining threatens habitats.
Example: some deep-sea corals live for thousands of years.
Animals in the dark depths are adapted to cold, pressure and scarce food, often with bioluminescence.
Deep-Sea Life is one of the 54 topics in Marine & Environmental Biology. It is rated Beginner, so it suits learners who are starting out in biology. Related topics in this area include Marine Genomics, Sharks and Rays, Whales and Dolphins.
Anglerfish use a luminous lure.
Deep-Sea Life is a Beginner topic, so no earlier topic is required. Other Beginner topics in Marine & Environmental Biology that pair well with it include Oceans, Ocean Zones, Plankton.
The closest topics to Deep-Sea Life are Marine Genomics, Sharks and Rays, Whales and Dolphins, Hydrothermal Vent Ecosystems. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Deep-Sea Life. To practise the whole of Marine & Environmental Biology, use the Marine & Environmental Biology quiz.
Deep-Sea Life: Animals in the dark depths are adapted to cold, pressure and scarce food, often with bioluminescence. Marine Genomics: Genome sequencing reveals adaptation to salinity, pressure and temperature in marine species. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Marine Genomics and explain the difference aloud. Finally, take the Marine & Environmental Biology quiz and come back to this page for any question you miss.
Genome sequencing reveals adaptation to salinity, pressure and temperature in marine species.
🌊 Marine & Environmental BiologyCartilaginous fishes with sensory adaptations, many of which are top predators.
🌊 Marine & Environmental BiologyMarine mammals called cetaceans that breathe air and communicate using sound.
🌊 Marine & Environmental BiologyCommunities fuelled by chemosynthetic bacteria thrive around seafloor vents without sunlight.
🌊 Marine & Environmental Biology