FISH, AMPHIBIANS and REPTILES

The first steps up the vertebrate ladder!
Aquatic vertebrates (fish) and the first to
transition from water to land (amphibians
and reptiles), able to free themselves from
water by developing amniotic eggs.

SHARKS
Detailed presentations on the present state of our knowledge of sharks. 3 programs. 54 slides, 20 of which are elegant artwork, and detailed guides.
EP #490X SLIDES
$99.95

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SAVE OVER $20.00 ON 3 SLIDE SET BUNDLE ORDER #490X........$99.95
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SHARKS OF THE WORLD Order #490............$42.50

The major species of sharks have been painted in lifelike detail by Richard Ellis.
This series includes paintings of 18 species including the newly discovered “mega-
mouth.” Accompanying text summarizes present knowledge. 20 slides and guide.

CONTENT SAMPLE: 26878 First of all, there is no such thing as “the shark.”
There is a large class of animals known as Chondrichthyes (cartilaginous fishes) which includes
all sharks, skates and rays. The order Selachii encompasses all the sharks, and certain
characteristics define this order.

All 250 some odd species of sharks, of which this great white (Carcharadon carcharias)
is representative, have a skeleton composed completely of cartilage. Sharks are totally
boneless, which accounts for the relatively sparse fossil record. All sharks have multiple gill slits,
numbering five to seven, as opposed to the single opening of bony fishes. The location of these
gill slits helps to set sharks apart from the closely related skates and rays. Most skates and
rays have gill slits on the bottom of the head, while sharks generally possess gill slits on the
side of the head.

All sharks have at least one dorsal fin, one pair of pectoral fins, one pair of pelvic fins and
a tail or caudal fin. The tail propels them through the water while the pectoral fins steer and the
dorsal and pelvic fins stabilize. The analogy to an airplane is not inappropriate--more than one
author has compared a shark to a fighter plane.

REVIEWS “...captures the awesome streamlined beauty and sense of mystery that
makes sharks so fascinating. The accompanying print material is engaging as well as informative
reading.... The visuals of course are marvelous.” Media Review. “Fascinating material is
adapted to the interests of elementary grades as well as older students.” Booklist.
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SHARKS Slides order #SS-0865S........$42.50

Live photography, above and primarily underwater, combined with artwork
presents a survey of the behavior, dangers, and benefits of these important marine
animals. Includes dramatic close-ups of the great white! 20 frames and guide.
(Filmstrip order SS-0865F.....$15.00.)

CONTENT SAMPLE: 3. The whale sharks (Rhincodon) and basking sharks (Ceto-
rhinus), which may reach 50 ft. and weigh several tons, are harmless giants that subsist on
plankton strained from the sea through modified gill rakers. All other sharks are carnivorous, the
largest among them being the voracious 40 ft. white shark (Carcharadon), which attacks seals,
sea turtles, large fish and, on more than one occasion, man. The sluggish Greenland shark
(Somniosus) of cold deep waters has been known to feed on seals, reindeer, large fish and
whales. Normally sharks feed on fish, often attacking in schools; open-ocean species such as
the mackerel, mako and thresher sharks frequently feed near the surface, and are much sought
after by rod and reel sportsmen as prime game fish.
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DISSECTION GUIDE FOR THE SHARK Slides order #SS-0585S...........$34.95

Avoid smelly and controversial classroom dissections and the needless
depletion of wild populations, yet still teach biology fundamentals. 14 frames and guide.
(Filmstrip order SS-0585F.......$15.00.)
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~0202-081~ Great white shark (Carcharadon carcharias). photo by Educational Images Ltd.

Copyright (c) MCMXCVII Educational Images Ltd., Elmira, NY, USA. All rights reserved.

EDUCATIONAL IMAGES LTD.

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