Invertebrate (in CC amphib glossary)

[Jan]

Invertebrate: An animal which lacks a backbone (such as insects, spiders, worms, etc.). For amphibians, these are a naturally occurring food source.

 

[Azhael]

For the shake of exactitude, wouldn´t it be better perhaps to say "Any animal that lacks an squeletal structure or a notochord in all stages of it´s life. This includes all animals outside the phylum Chordata (such as insects, worms, arachnids, crustaceans...)"
Maybe a bit technical but definitely more exact, right?

 

[Jan]

For the shake of exactitude, wouldn´t it be better perhaps to say "Any animal that lacks an squeletal structure or a notochord in all stages of it´s life. This includes all animals outside the phylum Chordata (such as insects, worms, arachnids, crustaceans...)"
Maybe a bit technical but definitely more exact, right?

Ugggh...but there are invertebrate chordates.
I would be more inclined to perhaps change the definition to:

Invertebrate: An animal which lacks an internal skeleton. Invertebrates either have an exoskeleton (e.g., insects and spiders) or no skeleton (e.g., worms). For amphibians, invertebrates are a naturally occurring food source and comprise much of their diet.

What do you think?

 

[Azhael]

Ugggh...but there are invertebrate chordates.

Yes, there are, but they are not considered invertebrates, at least not from a taxonomic point of view.
I was aiming for a scientifically accurate version, more than an easy explanation for the general public, but perhaps that´s a mistake.