Animal Adaptations and Light Pollution

Vocabulary practice cards reviewing animal adaptations, speed statistics, light pollution phenomena, and biological defense strategies.

Manatees (Sea Cow)

Herbivorous marine animals found in the Amazon, Caribbean seas, and Indian Ocean that live in shallow waters, float over the water, and spend most of their time eating and resting.

Gila Monster

A highly venomous lizard indigenous to the southwestern United States that rests underground and can consume food up to one-third of its body weight.

Loris

A medium-sized primate inhabitant of Southeast Asia with human-like hands that walks at a maximum speed of $1.2\,\text{mph}$ and delivers a poisonous bite.

Seahorse

A tropical fish species whose peculiar body structure limits its fast movement to a maximum of $0.5\,\text{mph}$.

Banana Slug

Shell-less terrestrial molluscs that move through muscle contractions and spend most of their time underground feeding and laying eggs.

Giant Tortoise

A heavy creature weighing up to $350\,\text{kg}$ with thick legs and shell, found in wet grasslands, capable of living without water or food for a year.

Garden Snails

Terrestrial molluscs indigenous to the Mediterranean region with thick coiled shells that restrict movement to only a few yards per hour.

Starfish

Marine animals that drift with currents at $0.02\,\text{mph}$ and possess high regeneration abilities, allowing cut pieces to grow into new organisms.

Three-Toed Sloths

The slowest animals in the world, native to America, moving at a maximum speed of $0.003\,\text{mph}$ while conserving energy in tree branches.

Blue Light

Light emitted from electronic devices such as mobile phones that tricks the brain into thinking it is daytime, suppressing melatonin production.

Light Trespass

The phenomenon occurring when a light fixture unintentionally illuminates surrounding unintended areas, such as streetlight entering through a window.

Light Clutter

The excessive grouping of bright lights that creates confusion and distraction from surrounding objects.

Cones and Rods

Groups of light-sensitive photoreceptor cells situated in the retina of animal eyes.

Glare

Excessive visual brightness that causes discomfort or impairment to human vision.

Sky Glow

The artificial brightening of the night sky over inhabited human settlements and cities.

Diffused Light

Light produced or reflected by an extended surface, offering uniform, soft illumination that minimizes heavy shadows.

Light Fixtures

Modern optical controls that direct light downward and utilize minimal electric wattage to reduce light pollution.

Algal Bloom

Rapid growth of algae in lakes caused by light pollution, blocking zooplankton consumption and disrupting plant ecosystems.

Carbon Dioxide

A key greenhouse gas released in elevated quantities as a byproduct of excess energy used in light pollution.

Adaptations

Special characteristics based on genetic changes—categorized as structural, physiological, or behavioural—that help an organism survive in its environment.

Texas Horned Lizard

A lizard that defends itself by protruding its scales, puffing up its body, and squirting blood directly from its eyes or mouth.

Basilisk Lizard

A lizard capable of escaping predators by running upright on its hind legs at $15\,\text{mph}$ for up to $20\,\text{m}$ across water before swimming.

Opossums

Animals that feign death or illness when threatened by exposing teeth, foaming at the mouth, and emitting a foul odor.

Hippopotamus

A mammal possessing $6\,\text{cm}$ thick skin that secretes a protective reddish-orange fluid commonly referred to as blood sweat.

Wood Frogs

Amphibians capable of freezing two-thirds of their body water, halting blood flow and heart function while using high glucose levels to survive.

Kangaroo Rats

Desert-dwelling rodents that survive without drinking water by extracting all necessary moisture directly from their seed diet.

Exploding Ant

An ant species that ruptures its body when threatened, releasing a sticky, toxic yellow liquid to kill predators.

Diving Bell Spider

The only spider species that lives under water full-time by spinning a bubble-shaped web structure to trap oxygen.