Sunday, August 31, 2014

Black and White Sunday: Bridges

Walls or bridges? Separation or unity?

For us humans this is a political, ethical, and perhaps a philosophical question.

For wildlife it is life or death. Genetic islands of species don't survive. They will die out. It's that simple, yet so complex that it took ecologists many years to understand this truth.

Here are some wonderful wildlife bridges. 

Ecoduct de Woeste, Netherlands
Photo: The World Geography
 Genetic mixing between populations, bridging the gaps between isolated animals seeking mates.

Banff National Park, Alberta, Canada
Photo: The World Geography
 Unifying forests bisected by a four lane highway…

Photo: The World Geography
 ...bridges from despair to hope.

Christmas Island National Park, Australia
Photo: The World Geography
  Safe travel along migration routes

Keechelus Lake, Washington, USA
Photo: The World Geography
…beautiful, aren't they? 

Thank you to whoever put this on Facebook today.  I clicked to the source, The World Geography, in my excitement at how well this fit with yesterday's Black and White photo of Toby.  I couldn't find the FB post again in my newsfeed.


  1. great pictures, that spider bridge is very interesting! but Tobys picture is the best

    retro rover

  2. Hey Amy...very interesting post and bridges. Toby looking good in b&w!
    How ironic you were at Duke labs. My son in law works at the NCSU SEAFOOD LAB IN MOREHEAD CITY AND MY daughter works at NCSU's Center for Marine Science and Technology in Morehead city. Both facilities work closely with Duke and UNC labs. How long ago were you there? Beaufort and Morehead City are beautiful cities.
    Madi and cecilia

  3. Love your picture and the saying. So very true. I had never seen the overpass in Banff before. Wish I had known it was there when I was visiting. Would have been cool to see in person.

    Wonderful Sunday post. Loved it.

  4. Bridges are meant to be crossed to learn all about the other side...

  5. Yes, it is. Golden Thanks for sharing. Love the Netherlands bridge. Toby's photo is PAWsome ... love the back shot and the quote. Hope you guys are having a great weekend. Golden Woofs

  6. Those are fabulous and we have never seen those before so it was a real treat. Have a marvellous Monday.
    Best wishes Molly

  7. Fabulous!!!! We need some kind of connectivity between wildlands in our world so much. I even feel it as a mtn biker. I can cover a lot of ground, and I choose to avoid roads as much as possible. So, I know where the "barriers" are, and I bet that the animals run into those same barriers.

    There was article about mountain lions in California and their problems due to the lack of connectivity. Here's the link:


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