-
divided into two groups: the
midsagittal unpaired fins and the more
laterally located paired fins.
Unpaired fins are
predominantly ****ociated with generating...
-
thrust by
moving fins back and
forth in water.
Often the tail
fin is used, but some
aquatic animals generate thrust from
pectoral fins.
Fins can also generate...
-
Pelvic fins or
ventral fins are
paired fins located on the
ventral (belly)
surface of fish, and are the
lower of the only two sets of
paired fins (the other...
-
pectoral fins or both
their anal and
dorsal fins.
Different types of
Median paired fin propulsion can be
achieved by
preferentially using one
fin pair over...
-
possessed two
pairs of
paired fins.
Until recently these ancestors,
known as antiarchs, were
thought to have
lacked pectoral or
pelvic fins. In addition...
- body with a
short head and broad, paddle-shaped
paired fins. The
caudal peduncle (to
which the tail
fin is attached)
comprises over half the shark's length...
-
Early lobe-
finned fishes are bony fish with fleshy, lobed,
paired fins,
which are
joined to the body by a
single bone. The
fins of lobe-
finned fishes differ...
-
oxygen from
water using gills, has two sets of
paired fins, one or two
dorsal fins, an anal
fin and a tail
fin, jaws, skin
covered with scales, and lays eggs...
- armor.
Coelacanths have
eight fins – two
dorsal fins, two
pectoral fins, two
pelvic fins, one anal
fin and one
caudal fin. The tail is very
nearly equally...
- also the
first fish
clade to
develop pelvic fins, the
second set of
paired fins and the
homologous precursor to
hindlimbs in tetrapods. 380-million-year-old...