How do fireflies create light? - Emily A. Geest
Learning Stats
CEFR 等级
Total Words
Unique Words
难度
字幕 (78 segments)
DownloadYou’re a male firefly and it seems you’re hitting it off with this female.
She’s sending you the right signals back— but what’s this?
Suddenly, she’s lunging at you.
That’s not normal.
Let’s pause here to understand what’s going on
and see if you'll make it out alive.
The first firefly is thought to have lived over 100 million years ago,
illuminating the night with a glowing green light.
Full subtitles available in the video player
Key Vocabulary (18)
Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.
To make it easier for someone to do something by offering your services, resources, or support. It can involve physical effort, providing information, or giving money to assist a person or a cause.
This word describes something that is correct, accurate, or based on facts. It is also used to talk about actions that are morally good or socially acceptable.
"That's the right answer to the question."
unlike
"Different colors."
A species is a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. It is the basic unit of biological classification and taxonomic rank in the hierarchy of living things.
Describes a space that has a lot of natural brightness or many windows. It also refers to colors that are pale or close to white rather than dark.
"This is very light."
Grammar in This Video
"prefer faster flickers, while ignited firefly females select for longer light pu..."
"there are around 2,000 firefly species"
"Immature fireflies also tend to glow when they're disturbed."
"The first firefly is thought to have lived over 100 million years ago"
"The first firefly is thought to have lived over 100 million years ago"
"Different species display different colors... all resulting from variation in th..."
"today, there are around 2,000 firefly species, found all over the world"
"it seems you’re hitting it off with this female."
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