Weather
Weather idioms
Animal world
Wildlife under threat
Plants (metaphors)
100

Rain lasting for a few days or weeks

Torrential rain

100

Try to reach goals that are unrealistic, fanciful, or unlikely to happen.

Chase rainbows

100

The natural home or environment of an animal or plant.

Habitat

100

Illegal hunting of animals and birds

Poaching

100

Professional  life that is rapidly developing, flourishing, and achieving success, often characterized by increasing recognition, new opportunities, and personal fulfillment.

Blossoming career

200

Rain and snow together

Sleet

200

In a state of extreme, euphoric happiness.

On cloud nine

200

How would you describe an animal that is protective of its land

Territorial

200

The action of clearing a wide area of trees.

Deforestation

200

To discover the fundamental cause or true origin of a problem, issue, or word

Get to the root (of a problem)

300

Snow storm

Blizzard

300

To be impractical, often to the point of being very unhelpful or counterproductive.

Have (one's) head in the clouds

300

A protected area for animals, plants,etc.

(Wildlife) reserve

300

A group of animal or plant that is seriously at risk of extinction.

Endangered species

300

To extend or expand one's activities or interests in a new direction.

Branch out

400

Small balls of ice that fall like rain from the sky

Hail (stones)

400

Regardless of what problems might arise; no matter what.

Come rain or shine

400

In a natural environment not controlled by people

In the wild

400

Continuously decreasing in number.

In decline

400

To result from, or be caused by a particular source, person, or event.

Stem from

500

Predict or calculate weather/events in advance

Forecast

500

Think about something some time after it happened and in a calmer or more sensible way than was possible at the time it happened.

In the cold light of day

500

The practice of performing operations on live animals for the purpose of experimentation or scientific research

Vivisection

500

Wanted by many people but not easy to get

Sought after

500

To produce successful results (research,etc.)

Bear fruit