75 is a Special Number

As the sum of the first five pentagonal numbers, seventy-five is a pentagonal pyramidal number. It can also be categorized as a self, Keith, and enneagonal number. If any of these terms have meaning to you whatsoever, you’ll probably enjoy the science, medicine, and natural history served up in the seventy-fifth edition of the Tangled Bank, hosted by Grrlscientist at Living the Scientific Life.

Mike is a leading authority in the field of standardized test preparation, but he's also a traveler who fully expects to see every bird in the world. Besides founding 10,000 Birds, Mike has also created a number of other entertaining but now extirpated nature blog resources, particularly the Nature Blog Network and I and the Bird.

Share This Article

FB Comments

Leave a Reply

Note: All fields are required to fill in!


...Or These Blasts From The Past

Welcome

Welcome to 10,000 Birds, just the place for people who love birds, pictures of birds, and people who write about birds, birding, conservation, and much more.

Trying to reach Mike or Corey? Here is how to CONTACT us.

Newsletter

Get 10,000 Birds in your email inbox every day. Sign up for our free email newsletter!




  • Recent Posts
  • Comments
  • Tags

Australia Australian birds best bird Bird Behavior Birding Birds Blogging book review books Broome California Conservation Costa Rica digiscoping ducks Ecuador Europe field guide Florida Forest Park gulls hummingbirds iatb ID Quiz Jamaica Bay La Paz Mexico listing migration News New York owls Queens raptors Reviews Serbia shorebirds Space Coast Birding and Wildlife Festival Trips Twitching waterfowl weekend wildlife rehabilitators wood-warblers woodpeckers Worldwide Birding Adventures
Popular Posts
Recent Comments

Tom’s 2018 Year List – 686
Pat’s 2018 Year List – 542
Clare M’s 2018 Year List – 340
Donna’s 2018 Year List – 220
Corey’s 2018 Year List – 205
Donna’s 2017 Year List – 840
Pat’s 2017 Year List – 746
Corey’s 2017 Year List – 568
Clare M’s 2017 Year List – 458
Jochen’s 2017 Year List – 250
Tom’s 2017 Year List – 251
Pat’s 2016 Year List – 882
Donna’s 2016 Year List – 709
Clare M’s 2016 Year List – 464

Fatbirder's Top 1000 Birding Websites

© 2013 10,000 Birds. All words, images, and opinions are the property of their respective authors unless stated otherwise.