- to
breastfeed successfully. One
study of
women with
inverted or non-
protractile nipples found no
statistically significant difference in breastfeeding...
- with
sandy bottoms,
feeding pits can be seen
during daytime. The fish's
protractile mouth helps it dig for
chironomid larvae,
Tubifex worms, bivalves, and...
-
phalanges of the paws and are made of keratin. Many
predatory mammals have
protractile claws that can
partially hide
inside the animal's paw,
especially the...
-
pikes and
their relatives, as they
share some features: a flat head with
protractile mouth beset with cardiform, villiform, or compressed, bi- or tricuspid...
- on
their forefeet and four on
their hind feet.
Their curved claws are
protractile and
attached to the
terminal bones of the toe with
ligaments and tendons...
- and the
profile a
straight line from
dorsal fin to mouth. The
mouth is
protractile, and the
lower jaw juts out.
Sizes are
fairly small,
typically up to...
-
ventral and
dorsal surfaces. The
mouth is large, crescent-shaped and
protractile, with the
upper lip
continuous while the
lower lip is
interrupted by...
-
attached to the
ethmoid and palatine,
slides in and out with the
highly protractile premaxilla. The
pelvic fins have up to 17 rays and are
placed rather...
- Cuvier, 1816
Gasterosteoidei is
characterised by the
possession of a
protractile upper jaw and a well
developed upward pointing process on the premaxilla...
-
species have a
tubular snout. The
mouth is very
small and is with non
protractile jaws
which have one row of compressed,
closely set, incisor-like teeth...
