mammals -vs- reptiles

Status
Not open for further replies.
D

devans

Guest
When a human baby is born it needs nurturing from its mother for a certain amount of time B4 it becomes self sufficient, as does an elephant, for example. Reptiles are "born ready" and need no nurturing. There is a TERM for this...what is this called?
 

Mister Micawber

Key Member
Joined
Sep 26, 2004
Member Type
English Teacher
Native Language
English
Home Country
United States
Current Location
Japan
'altricial' vs 'precocial'-- but I'm not sure whether these terms are used with all animal groups; they are usually applied to different types of birds (chickens are precocial; sparrows are altricial).
 

MikeNewYork

VIP Member
Joined
Nov 13, 2002
Member Type
Academic
Native Language
American English
Home Country
United States
Current Location
United States
Mister Micawber said:
'altricial' vs 'precocial'-- but I'm not sure whether these terms are used with all animal groups; they are usually applied to different types of birds (chickens are precocial; sparrows are altricial).

Good answer. I believe that "precocial" is used for reptiles and amphibians as well as for birds.
 

Mister Micawber

Key Member
Joined
Sep 26, 2004
Member Type
English Teacher
Native Language
English
Home Country
United States
Current Location
Japan
. . . on the other hand, I was a precocious child. . . .
 

Casiopea

VIP Member
Joined
Sep 21, 2003
Member Type
Other
Mister Micawber said:
'altricial' vs 'precocial'-- but I'm not sure whether these terms are used with all animal groups; they are usually applied to different types of birds (chickens are precocial; sparrows are altricial).

Thanks! I was wondering what the term was. A++ :up: :D

Wikipedia said:
In biology, precocial species are those that are relatively mature and mobile from the moment of birth or hatching. The opposite of precocial is altricial. The distinction between precocial and altricial species is particularly sharp in birds. Precociality is of course also found in other groups. Familiar examples of precocial mammals are most ungulates, the guinea pig, and most species of hare.
 

Mister Micawber

Key Member
Joined
Sep 26, 2004
Member Type
English Teacher
Native Language
English
Home Country
United States
Current Location
Japan
And hare's to you, Cassy! Good work-- I often forget that sources of information exist.
 

Casiopea

VIP Member
Joined
Sep 21, 2003
Member Type
Other
Mister Micawber said:
And hare's to you, Cassy! Good work-- I often forget that sources of information exist.

ohmygawd! :lol: Let the source be with you!
 

Tdol

Editor, UsingEnglish.com
Staff member
Joined
Nov 13, 2002
Member Type
Native Language
British English
Home Country
UK
Current Location
Japan
Casiopea said:
Wikipedia said:
In biology, precocial species are those that are relatively mature and mobile from the moment of birth or hatching.
Not me then.;-)
 
Status
Not open for further replies.
Top