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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
species that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "species that" is correct and usable in written English.
It can be used when referring to specific types or categories of organisms within the biological classification system. Example: "The species that inhabit this region are known for their unique adaptations to the environment."
✓ Grammatically correct
News & Media
Academia
Science
Encyclopedias
Wiki
Formal & Business
Alternative expressions(4)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
There's rare plant species that grow there".
News & Media
There are many species that are not declining.
News & Media
"It's a species that is often sold," he said.
News & Media
We are the only species that has dominated the planet.
News & Media
For most mosquito species, that is less than a week.
News & Media
"Cats are a domesticated species that don't belong outside.
News & Media
Agamospecies are species that lack some property: sex.
News & Media
"This is a species that is really made for invading".
News & Media
Shop for sturdy species that don't require staking.
News & Media
Happily for our benighted species, that very process has begun.
News & Media
Passenger pigeons, a species that obsessed Dr. Church's former student.
News & Media
Expert writing Tips
Best practice
When writing about specific biological or ecological contexts, ensure that you use the phrase "species that" to clearly indicate you are referring to particular groups of organisms with shared characteristics.
Common error
Avoid using "species that" when referring to broad, non-biological categories. It is more appropriate for scientific or technical contexts where precise classification is important.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "species that" functions as a relative clause, modifying the noun "species" and providing further information or specifications about it. This clause helps to narrow down or define which species are being referred to, as demonstrated by Ludwig.
Frequent in
News & Media
34%
Science
24%
Academia
18%
Less common in
Encyclopedias
6%
Wiki
4%
Formal & Business
2%
Ludwig's WRAP-UP
In summary, the phrase "species that" is a grammatically sound and frequently used construction, particularly within scientific, academic, and news contexts. Ludwig confirms that it functions as a relative clause, serving to categorize and specify organisms based on shared attributes. Its neutral to formal register makes it suitable for technical discussions. To ensure clarity, use "species that" when referring to specific biological categories, while avoiding overgeneralization in non-biological contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
types that
Replaces "species" with a more general term for categories.
kinds that
Similar to "types that", offering a broader categorical reference.
organisms that
Focuses on living entities, suitable for biological contexts.
varieties that
Highlights different forms within a broader group.
races that
Implies a shared ancestry or origin within a population.
classes that
Emphasizes a structured or hierarchical classification.
genera that
Uses a specific taxonomic rank, more precise than "species".
groupings that
Focuses on the act of assembling or classifying entities.
examples that
Highlights instances that represent a specific category.
categories that
Focuses on the broad classification to which something belongs.
FAQs
How can I use "species that" in a sentence?
Use "species that" to describe a particular group of organisms with shared traits, for example, "The "species that" are endemic to this island are highly vulnerable to habitat loss".
What is a good alternative to "species that"?
Depending on the context, you could use alternatives like "types of", "kinds of", or "organisms that" to convey a similar meaning, but remember that "species" is specific to biological classification.
Is it correct to say "species which" instead of "species that"?
While both "that" and "which" can be used in relative clauses, "that" is generally preferred for restrictive clauses that are essential to the sentence's meaning. Thus, ""species that"" is often more appropriate.
What's the difference between "species that" and "species which"?
"Species that" introduces essential information defining the species, while "species which" is typically used for nonessential, additional information. However, in modern usage, "that" is often preferred in both cases for simplicity.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested