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A wide variety of our popular filmstrip
programs and some live action now
available on video for easy presentation.
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SAVE $45.00 ON 1 VIDEO, 2 SLIDE SET BUNDLE ORDER #FV-1006X........$99.95
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ANIMAL TRACKS AND SIGNS Video order #FV1006V........$59.95
Presents various animal tracks and signs throughout the seasons, and provides
useful information about the special characteristics and natural history of the animals
that left the signs. Footprints, scratch marks, nesting places, wallows, scats and signs
of food gathering are all detailed. Coverage includes deer, fox, porcupine, rabbit, bear,
mink, otter, owl, woodpecker, killdeer, wild turkey, sapsucker and grouse. Also
demonstrates how to make casts of tracks for future study. 91 frames and guide. Video
and filmstrip. (Filmstrip order #FS-1006F.....$49.95.)
CONTENT SAMPLE:
36. Beaver leave more signs than any other animal except man. They cut down
numerous trees to get at the inner bark which is their principal food supply. When cutting a tree,
a beaver stands upright and holds it with its forefeet. It turns its head on the side and bites into
the wood, continuing around the tree until it falls.
37. Beavers have no idea which way it is going to fall, and are sometimes killed by
falling trees. It takes them about ten minutes to cut through a 25 cm tree.
REVIEWS: “will awaken the senses of the most dedicated city dwellers... will
complement any science or language arts lesson that focuses on animals.” Previews. “It is
an EXCELLENT filmstrip!!” S.W., Bentley Jr. High School, Burton, MI. “...will interest viewers
of all ages. The photography is excellent...The Teacher's Guide is excellent...” Media Review.
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THE BEAVER'S WORLD Slides order #477..........$42.50
Follows these large rodents through such seasonal activities as tree felling, dam
and lodge construction and breeding. Examines such physical characteristics and
adaptations as teeth, tails, feet, lung capacity, food preferences, modes of
communication, sensory capabilities, and family structure. Reviews the environmental
impact of their tree cutting and dam building. 20 slides and guide.
CONTENT SAMPLE: 22031 Despite the obvious conservation benefits beaver provide,
it is only fair to acknowledge that as their numbers increased in the mid-1900's, so did the
complaints about their destructive activities. To this day their presence in an area is marked
by controversy--to many people this persistent rodent is a definite nuisance.
Because they reproduce prolifically, beavers are constantly searching out new territories
in which to build dams and create swamps, bringing them into direct conflict with man. In many
areas their dam building activities have repeatedly flooded valuable agricultural crops (top),
highways, railroads, bridges, septic systems and valuable forest areas. Their dams have also
blocked the routes of migrating fish and their need to stop water from flowing has motivated them
to plug many a culvert pipe.
Not only do beavers cause flooding, but their need to constantly gnaw on wood has led
to the destruction of wooden bridges, forest and fruit tree plantations and an occasional
ornamental planting. The beaver in the bottom portion of this slide actually occupied a
boathouse and started building a lodge, after gnawing on the wood partitions and floor. Regular
interruptions in its daytime siestas eventually persuaded it to locate elsewhere.
REVIEWS: “...fine set.... Superior slides are augmented by a text that can be used
in the middle grades as well as in high school...good resources in schools and public libraries.”
Booklist.
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HOMES AND HOMESITES Slides order #172.........$42.50
How and why animals live where they do, the selection of a homesite, and the
different materials and methods used. Information is presented about animals which have
no home (penguin), those which transport their home as part of their bodies (land snail,
chambered nautilus, barnacle, limpet, sea urchin, stony coral), those which burrow
(earthworm, bank swallow, prairie dog, woodchuck, woodpecker), those which take over
the former homes of others (burrowing owl, hornbill, hermit crab), and those that build
their own (tent caterpillar, yellow jacket, ant, caddisfly, spider, beaver). 20 slides and
guide.
CONTENT SAMPLE: 20326 The nautiloids are animals of ancient lineage. Fossil
records show over 3,000 species existed in the primeval seas. Today, only three species survive
in the southwest Pacific. Shown on the left is the chambered nautilus (Nautilis pompilius), found
from the Fiji Islands to southern Australia. It may attain a diameter of up to 25 cm (10 in.).
The shell of a nautilus grows naturally in a forward spiral, and growth is in accordance
with the growth of the animal’s body within. As with snails, it is only the lip of the nautilus shell
which actually grows. But the spiraled shell of the nautilus is a physical marvel, for in structure, it
is what is known as a logarithmic spiral--essentially a cone coiled round a linear axis. The growth
of the shell is perpendicular to the axis around which it spirals.
As can be seen in the sectioned fossil nautiloid on the right, the nautilus shell is unique
in another way, too. Unlike the open spiral of a snail’s shell, the interior of the nautilus shell is
sectioned or chambered. As the shell grows, the animal moves from smaller to larger chambers.
The older, smaller chambers are sealed off, so that the body of the animal remains only in the
largest, most newly-formed chamber.
Older, discarded chambers are filled with gas, making the animal semibuoyant in the
water. Thus, the nautilus floats and swims about easily. It also has the ability to adjust the
pressure of the gas within its sealed chambers, so that it can travel deep within the ocean
without the danger of the external water pressure damaging the shell. . .
REVIEW: “The slides and...annotation are excellent...scholarly...highly
recommended as a basic purchase...” Previews. “...well selected photographs clarify and
illustrate the ideas...” The Science Teacher.
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~0595-068~ Beaver felled tree. photo by Charles R. Belinky, Ph.D.
Copyright (c) MCMXCVIII Educational Images Ltd., Elmira, NY, USA. All rights reserved.
EDUCATIONAL IMAGES LTD.
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