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Mammalian Diving Reflex

Activity

Hold Your Breath!

Find out about the Mammalian Diving Reflex and how long different species, including humans, can hold their breath. How long can you hold your breath on land?

Science Seed

The mammalian diving reflex is inherent to all humans as an adaptation left over from the time when life developed in the oceans. It occurs when a mammal’s face is submerged in cool water. Breathing automatically stops, heart rate is reduced to conserve oxygen, blood vessels to the extremities narrow, blood is shunted to vital organs, and the spleen contracts to push extra stored blood into the body. Freedivers learn to utilize the mammalian diving reflex to extend their time under water. *Always have supervision when you practice holding your breath.*

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earn Badges

Badges can be earned through hands-on experiences within each of the 16 branches of science, or “Science Slices.” You can earn a badge in each branch of science by doing four activities in these categories. We also encourage participants to keep a Nature Journal to record their memories, and to express themselves creatively through writing or drawing after each activity. We recommend that each child (and parent if they’d like) write or draw in a journal after each activity, with expectations of your children that match their age (the goal is self-expression, not perfection).

Explore the Detroit Libraries and their Surrounding Parks

The Ecologist School Pocket Guide: Detroit Libraries Edition is a project by Families in Nature to help our community learn more about the ecosystems around them, while getting outside into nature together! This booklet has 64 lessons across 16 different branches of science to help you play, learn and volunteer in the park as a family!

Special thanks to the National Recreation and Park Associations’ Resilient Park Access Grant that allowed the creation of expanded natural areas in parks throughout Detroit and made Nature Exploration Backpacks available for checkout at Detroit libraries. Many thanks to the partners involved including City of Detroit General Services Department, Detroit Outdoors, Sierra Club Inspiring Connections Outdoors, The Greening of Detroit, NRPA, Detroit Public Libraries, Families in Nature and the Nature Pocket Community Advisory Committee.

Take these guides, and explore some near-by nature in a park near you:

District 1: Stoepel No. 1

District 2: Sawyer Playground

District 3: Jayne Field

District 4: Skinner Playfield

District 5: Bishop Park

District 6: Romanowski Park

District 7: Stein Playfield

join Families in Nature

It is our vision to inspire all families to fall in love with nature and foster the next generation of conservationists. Becoming a member of Families in Nature will give your family the opportunity to have adventures in nature, experience field science, develop as youth conservation leaders, and make memories that will last a lifetime. Memberships are free for everyone.

Who are we?

Families in Nature works to create opportunities for nature connection with the purpose of sparking a deep love and desire to protect, conserve and restore the environment. Our mission is to connect children and their families to nature and to each other through time spent learning, playing, and volunteering outdoors. It is our vision to inspire ALL families to fall in love with nature and foster the next generation of conservationists.