The development of the pleuteus larva of the sea urchin is shown in actual photographs assisted by explanatory animated diagrams. The feeding and growth of the four, six and eight-armed stages are seen. The young urchin is contrasted with the larval form and its growth into a mature adult explained. Emphasis is made on the methods of feeding during the different stages of the life history.
Credits
Collection metadata
ACMI Identifier
009542
Language
English
Subject categories
Animals & Wildlife → Marine biology
Animals & Wildlife → Marine ecology
Climate, Environment, Natural Resources & Disasters → Life cycles (Biology)
Climate, Environment, Natural Resources & Disasters → Marine ecology
Documentary
Documentary → Documentary films - Great Britain
Education, Instruction, Teaching & Schools → Biology - Study and teaching
Educational & Instructional
Educational & Instructional → Educational films
Educational & Instructional → Instructional
Mathematics, Science & Technology → Biology - Study and teaching
Mathematics, Science & Technology → Life cycles (Biology)
Mathematics, Science & Technology → Marine biology
Mathematics, Science & Technology → Marine ecology
Short films
Short films → Short films - Great Britain
Sound/audio
Sound
Colour
Black and White
Holdings
16mm film; Access Print (Section 1)